Delete dead code (#14901)

9 files changed, 0 insertions, 763 deletions

diff --git a/src/inc/clrconfig.h b/src/inc/clrconfig.h
index c15e2eb2f5..bb49dde6a2 100644
--- a/src/inc/clrconfig.h
+++ b/src/inc/clrconfig.h
@@ -60,8 +60,6 @@ public:
         // Remove any whitespace at beginning and end of value.  (Only applicable for
         // *string* configuration values.)
         TrimWhiteSpaceFromStringValue = 0x100,
-        // If set, check whether a PerformanceDefault is active for this value before using the built-in default
-        MayHavePerformanceDefault = 0x200,
 
         // Legacy REGUTIL-style lookup.
         REGUTIL_default = IgnoreConfigFiles,
@@ -76,10 +74,6 @@ public:
     typedef HRESULT (* GetConfigValueFunction)
         (__in_z LPCWSTR /*pKey*/, __deref_out_opt LPCWSTR* /*value*/, BOOL /*systemOnly*/, BOOL /*applicationFirst*/);
 
-    // Function pointer definition used for calling PerformanceDefaults::LookupConfigValue
-    typedef BOOL (* GetPerformanceDefaultValueFunction)
-        (LPCWSTR /*name*/, DWORD* /*pValue*/);
-
     // Struct used to store information about where/how to find a Config DWORD.
     // NOTE: Please do NOT create instances of this struct. Use the macros in file:CLRConfigValues.h instead.
     typedef struct ConfigDWORDInfo 
@@ -195,18 +189,10 @@ public:
     // Register EEConfig's GetConfigValueCallback function so CLRConfig can look in config files. 
     static void RegisterGetConfigValueCallback(GetConfigValueFunction func);
 
-    // Register PerformanceDefaults' LookupConfigValue so CLRConfig can support 'MayHavePerformanceDefault' values
-    static void RegisterGetPerformanceDefaultValueCallback(GetPerformanceDefaultValueFunction func);
-
-
-    
 private:
     // Function pointer to EEConfig's GetConfigValueCallback function (can't static bind from utilcode to VM)
     static GetConfigValueFunction s_GetConfigValueCallback;
 
-    // Function pointer to PerformanceDefaults' LookupConfigValue function (can't static bind from utilcode to VM)
-    static GetPerformanceDefaultValueFunction s_GetPerformanceDefaultValueCallback;
-
     
     // Helper method to translate LookupOptions to REGUTIL::CORConfigLevel
     static REGUTIL::CORConfigLevel GetConfigLevel(LookupOptions options);
diff --git a/src/utilcode/clrconfig.cpp b/src/utilcode/clrconfig.cpp
index 7bd404b5d4..3d1679150b 100644
--- a/src/utilcode/clrconfig.cpp
+++ b/src/utilcode/clrconfig.cpp
@@ -24,13 +24,6 @@
 //
 CLRConfig::GetConfigValueFunction CLRConfig::s_GetConfigValueCallback = NULL;
 
-//
-// Initialize the PerformanceDefaults::LookupConfigValue function pointer to NULL. If not initialized, CLRConfig
-// will ignore LookupOptions::MayHavePerformanceDefault.
-//
-CLRConfig::GetPerformanceDefaultValueFunction CLRConfig::s_GetPerformanceDefaultValueCallback = NULL;
-
-
 // 
 // Creating structs using the macro table in CLRConfigValues.h
 // 
@@ -182,22 +175,6 @@ BOOL CLRConfig::IsConfigEnabled(const ConfigDWORDInfo & info)
         }
     }
 
-    //
-    // If we get here, the option was not listed in REGUTIL or EEConfig; check whether the option
-    // has a PerformanceDefault-specified value before falling back to the built-in default
-    //
-    DWORD performanceDefaultValue;
-    if (CheckLookupOption(info, MayHavePerformanceDefault) &&
-        s_GetPerformanceDefaultValueCallback != NULL &&
-        s_GetPerformanceDefaultValueCallback(info.name, &performanceDefaultValue))
-    {
-        if (!SUCCEEDED(REGUTIL::GetConfigDWORD_DontUse_(info.name, info.defaultValue, &result, level, prependCOMPlus)))
-        {
-            if(performanceDefaultValue>0)
-                return TRUE;
-        }
-    }
-
     if(info.defaultValue>0)
         return TRUE;
     else
@@ -337,25 +314,6 @@ DWORD CLRConfig::GetConfigValue(const ConfigDWORDInfo & info, bool acceptExplici
         }
     }
 
-    //
-    // If we get here, the option was not listed in REGUTIL or EEConfig; check whether the option
-    // has a PerformanceDefault-specified value before falling back to the built-in default
-    //
-    DWORD performanceDefaultValue;
-    if (CheckLookupOption(info, MayHavePerformanceDefault) &&
-        s_GetPerformanceDefaultValueCallback != NULL &&
-        s_GetPerformanceDefaultValueCallback(info.name, &performanceDefaultValue))
-    {
-        // TODO: We ignore explicitly defined default values above, but we do not want to let performance defaults override these.
-        // TODO: Ideally, the above would use hresult for success and this check would be removed.
-        DWORD resultMaybe;
-        if (!SUCCEEDED(REGUTIL::GetConfigDWORD_DontUse_(info.name, info.defaultValue, &resultMaybe, level, prependCOMPlus)))
-        {
-            *isDefault = true;
-            return performanceDefaultValue;
-        }
-    }
-
     *isDefault = true;
     return info.defaultValue;
 }
@@ -494,10 +452,6 @@ HRESULT CLRConfig::GetConfigValue(const ConfigStringInfo & info, __deref_out_z L
         }
     }
 
-    // If we ever want a PerformanceDefault for a string value, you can replace this assert
-    // with code that follows the pattern for DWORD values above.
-    _ASSERTE(!CheckLookupOption(info, MayHavePerformanceDefault));
-
     *outVal = result;
     RETURN S_OK;
 }
@@ -648,17 +602,6 @@ void CLRConfig::RegisterGetConfigValueCallback(GetConfigValueFunction func)
 }
 
 // 
-// Register PerformanceDefaults' LookupConfigValue so CLRConfig can support 'MayHavePerformanceDefault' values
-// 
-//static 
-void CLRConfig::RegisterGetPerformanceDefaultValueCallback(GetPerformanceDefaultValueFunction func)
-{
-    LIMITED_METHOD_CONTRACT;
-    s_GetPerformanceDefaultValueCallback = func;
-}
-
-
-// 
 // Helper method to translate LookupOptions to REGUTIL::CORConfigLevel.
 // 
 //static 
diff --git a/src/vm/CMakeLists.txt b/src/vm/CMakeLists.txt
index aefc77113c..f49d01bc91 100644
--- a/src/vm/CMakeLists.txt
+++ b/src/vm/CMakeLists.txt
@@ -223,7 +223,6 @@ set(VM_SOURCES_WKS
     olevariant.cpp
     pefingerprint.cpp
     pendingload.cpp
-    perfdefaults.cpp
     profattach.cpp
     profattachclient.cpp
     profattachserver.cpp
@@ -312,7 +311,6 @@ list(APPEND VM_SOURCES_WKS
     dwreport.cpp
     eventreporter.cpp
     extensibleclassfactory.cpp
-    microsoft.comservices_i.c
     mngstdinterfaces.cpp
     notifyexternals.cpp
     olecontexthelpers.cpp    
diff --git a/src/vm/ceemain.cpp b/src/vm/ceemain.cpp
index afd5a7dd52..8b44945845 100644
--- a/src/vm/ceemain.cpp
+++ b/src/vm/ceemain.cpp
@@ -182,7 +182,6 @@
 
 #include "stringarraylist.h"
 #include "stubhelpers.h"
-#include "perfdefaults.h"
 
 #ifdef FEATURE_STACK_SAMPLING
 #include "stacksampler.h"
diff --git a/src/vm/microsoft.comservices.h b/src/vm/microsoft.comservices.h
deleted file mode 100644
index e112392ecc..0000000000
--- a/src/vm/microsoft.comservices.h
+++ /dev/null
@@ -1,277 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-#pragma warning( disable: 4049 )  /* more than 64k source lines */
-
-/* this ALWAYS GENERATED file contains the definitions for the interfaces */
-
-
- /* File created by MIDL compiler version 5.03.0280 */
-/* at Mon Jul 17 19:19:10 2000
- */
-/* Compiler settings for Z:\urt\inst\v1.x86chk\Microsoft.ComServices.idl:
-    Os (OptLev=s), W1, Zp8, env=Win32 (32b run), ms_ext, c_ext
-    error checks: allocation ref bounds_check enum stub_data 
-    VC __declspec() decoration level: 
-         __declspec(uuid()), __declspec(selectany), __declspec(novtable)
-         DECLSPEC_UUID(), MIDL_INTERFACE()
-*/
-//@@MIDL_FILE_HEADING(  )
-
-
-/* verify that the <rpcndr.h> version is high enough to compile this file*/
-#ifndef __REQUIRED_RPCNDR_H_VERSION__
-#define __REQUIRED_RPCNDR_H_VERSION__ 440
-#endif
-
-#include "rpc.h"
-#include "rpcndr.h"
-
-#ifndef __Microsoft2EComServices_h__
-#define __Microsoft2EComServices_h__
-
-/* Forward Declarations */ 
-
-#ifndef __IRegistrationHelper_FWD_DEFINED__
-#define __IRegistrationHelper_FWD_DEFINED__
-typedef interface IRegistrationHelper IRegistrationHelper;
-#endif 	/* __IRegistrationHelper_FWD_DEFINED__ */
-
-
-#ifndef __RegistrationHelperTx_FWD_DEFINED__
-#define __RegistrationHelperTx_FWD_DEFINED__
-
-#ifdef __cplusplus
-typedef class RegistrationHelperTx RegistrationHelperTx;
-#else
-typedef struct RegistrationHelperTx RegistrationHelperTx;
-#endif /* __cplusplus */
-
-#endif 	/* __RegistrationHelperTx_FWD_DEFINED__ */
-
-
-#ifdef __cplusplus
-extern "C"{
-#endif 
-
-void __RPC_FAR * __RPC_USER MIDL_user_allocate(size_t);
-void __RPC_USER MIDL_user_free( void __RPC_FAR * ); 
-
-
-#ifndef __Microsoft_ComServices_LIBRARY_DEFINED__
-#define __Microsoft_ComServices_LIBRARY_DEFINED__
-
-/* library Microsoft_ComServices */
-/* [version][uuid] */ 
-
-
-typedef /* [public][public][uuid] */  DECLSPEC_UUID("9D667CBC-FE79-3B45-AEBB-6303106B137A") 
-enum __MIDL___MIDL_itf_Microsoft2EComServices_0000_0001
-    {	InstallationFlags_Default	= 0,
-	InstallationFlags_ExpectExistingTypeLib	= 1,
-	InstallationFlags_CreateTargetApplication	= 2,
-	InstallationFlags_FindOrCreateTargetApplication	= 4,
-	InstallationFlags_ReconfigureExistingApplication	= 8,
-	InstallationFlags_Register	= 256,
-	InstallationFlags_Install	= 512,
-	InstallationFlags_Configure	= 1024
-    }	InstallationFlags;
-
-
-EXTERN_C const IID LIBID_Microsoft_ComServices;
-
-#ifndef __IRegistrationHelper_INTERFACE_DEFINED__
-#define __IRegistrationHelper_INTERFACE_DEFINED__
-
-/* interface IRegistrationHelper */
-/* [object][custom][oleautomation][uuid] */ 
-
-
-EXTERN_C const IID IID_IRegistrationHelper;
-
-#if defined(__cplusplus) && !defined(CINTERFACE)
-    
-    MIDL_INTERFACE("55E3EA25-55CB-4650-8887-18E8D30BB4BC")
-    IRegistrationHelper : public IUnknown
-    {
-    public:
-        virtual HRESULT __stdcall InstallAssembly( 
-            /* [in] */ BSTR assembly,
-            /* [out][in] */ BSTR __RPC_FAR *application,
-            /* [out][in] */ BSTR __RPC_FAR *tlb,
-            /* [in] */ InstallationFlags installFlags) = 0;
-        
-        virtual HRESULT __stdcall RegisterAssembly( 
-            /* [in] */ BSTR assembly,
-            /* [out][in] */ BSTR __RPC_FAR *tlb) = 0;
-        
-        virtual HRESULT __stdcall ConfigureAssembly( 
-            /* [in] */ BSTR assembly,
-            /* [in] */ BSTR application) = 0;
-        
-        virtual HRESULT __stdcall UninstallAssembly( 
-            /* [in] */ BSTR assembly,
-            /* [in] */ BSTR application) = 0;
-        
-    };
-    
-#else 	/* C style interface */
-
-    typedef struct IRegistrationHelperVtbl
-    {
-        BEGIN_INTERFACE
-        
-        HRESULT ( STDMETHODCALLTYPE __RPC_FAR *QueryInterface )( 
-            IRegistrationHelper __RPC_FAR * This,
-            /* [in] */ REFIID riid,
-            /* [iid_is][out] */ void __RPC_FAR *__RPC_FAR *ppvObject);
-        
-        ULONG ( STDMETHODCALLTYPE __RPC_FAR *AddRef )( 
-            IRegistrationHelper __RPC_FAR * This);
-        
-        ULONG ( STDMETHODCALLTYPE __RPC_FAR *Release )( 
-            IRegistrationHelper __RPC_FAR * This);
-        
-        HRESULT ( __stdcall __RPC_FAR *InstallAssembly )( 
-            IRegistrationHelper __RPC_FAR * This,
-            /* [in] */ BSTR assembly,
-            /* [out][in] */ BSTR __RPC_FAR *application,
-            /* [out][in] */ BSTR __RPC_FAR *tlb,
-            /* [in] */ InstallationFlags installFlags);
-        
-        HRESULT ( __stdcall __RPC_FAR *RegisterAssembly )( 
-            IRegistrationHelper __RPC_FAR * This,
-            /* [in] */ BSTR assembly,
-            /* [out][in] */ BSTR __RPC_FAR *tlb);
-        
-        HRESULT ( __stdcall __RPC_FAR *ConfigureAssembly )( 
-            IRegistrationHelper __RPC_FAR * This,
-            /* [in] */ BSTR assembly,
-            /* [in] */ BSTR application);
-        
-        HRESULT ( __stdcall __RPC_FAR *UninstallAssembly )( 
-            IRegistrationHelper __RPC_FAR * This,
-            /* [in] */ BSTR assembly,
-            /* [in] */ BSTR application);
-        
-        END_INTERFACE
-    } IRegistrationHelperVtbl;
-
-    interface IRegistrationHelper
-    {
-        CONST_VTBL struct IRegistrationHelperVtbl __RPC_FAR *lpVtbl;
-    };
-
-    
-
-#ifdef COBJMACROS
-
-
-#define IRegistrationHelper_QueryInterface(This,riid,ppvObject)	\
-    (This)->lpVtbl -> QueryInterface(This,riid,ppvObject)
-
-#define IRegistrationHelper_AddRef(This)	\
-    (This)->lpVtbl -> AddRef(This)
-
-#define IRegistrationHelper_Release(This)	\
-    (This)->lpVtbl -> Release(This)
-
-
-#define IRegistrationHelper_InstallAssembly(This,assembly,application,tlb,installFlags)	\
-    (This)->lpVtbl -> InstallAssembly(This,assembly,application,tlb,installFlags)
-
-#define IRegistrationHelper_RegisterAssembly(This,assembly,tlb)	\
-    (This)->lpVtbl -> RegisterAssembly(This,assembly,tlb)
-
-#define IRegistrationHelper_ConfigureAssembly(This,assembly,application)	\
-    (This)->lpVtbl -> ConfigureAssembly(This,assembly,application)
-
-#define IRegistrationHelper_UninstallAssembly(This,assembly,application)	\
-    (This)->lpVtbl -> UninstallAssembly(This,assembly,application)
-
-#endif /* COBJMACROS */
-
-
-#endif 	/* C style interface */
-
-
-
-HRESULT __stdcall IRegistrationHelper_InstallAssembly_Proxy( 
-    IRegistrationHelper __RPC_FAR * This,
-    /* [in] */ BSTR assembly,
-    /* [out][in] */ BSTR __RPC_FAR *application,
-    /* [out][in] */ BSTR __RPC_FAR *tlb,
-    /* [in] */ InstallationFlags installFlags);
-
-
-void __RPC_STUB IRegistrationHelper_InstallAssembly_Stub(
-    IRpcStubBuffer *This,
-    IRpcChannelBuffer *_pRpcChannelBuffer,
-    PRPC_MESSAGE _pRpcMessage,
-    DWORD *_pdwStubPhase);
-
-
-HRESULT __stdcall IRegistrationHelper_RegisterAssembly_Proxy( 
-    IRegistrationHelper __RPC_FAR * This,
-    /* [in] */ BSTR assembly,
-    /* [out][in] */ BSTR __RPC_FAR *tlb);
-
-
-void __RPC_STUB IRegistrationHelper_RegisterAssembly_Stub(
-    IRpcStubBuffer *This,
-    IRpcChannelBuffer *_pRpcChannelBuffer,
-    PRPC_MESSAGE _pRpcMessage,
-    DWORD *_pdwStubPhase);
-
-
-HRESULT __stdcall IRegistrationHelper_ConfigureAssembly_Proxy( 
-    IRegistrationHelper __RPC_FAR * This,
-    /* [in] */ BSTR assembly,
-    /* [in] */ BSTR application);
-
-
-void __RPC_STUB IRegistrationHelper_ConfigureAssembly_Stub(
-    IRpcStubBuffer *This,
-    IRpcChannelBuffer *_pRpcChannelBuffer,
-    PRPC_MESSAGE _pRpcMessage,
-    DWORD *_pdwStubPhase);
-
-
-HRESULT __stdcall IRegistrationHelper_UninstallAssembly_Proxy( 
-    IRegistrationHelper __RPC_FAR * This,
-    /* [in] */ BSTR assembly,
-    /* [in] */ BSTR application);
-
-
-void __RPC_STUB IRegistrationHelper_UninstallAssembly_Stub(
-    IRpcStubBuffer *This,
-    IRpcChannelBuffer *_pRpcChannelBuffer,
-    PRPC_MESSAGE _pRpcMessage,
-    DWORD *_pdwStubPhase);
-
-
-
-#endif 	/* __IRegistrationHelper_INTERFACE_DEFINED__ */
-
-
-EXTERN_C const CLSID CLSID_RegistrationHelperTx;
-
-#ifdef __cplusplus
-
-class DECLSPEC_UUID("89A86E7B-C229-4008-9BAA-2F5C8411D7E0")
-RegistrationHelperTx;
-#endif
-#endif /* __Microsoft_ComServices_LIBRARY_DEFINED__ */
-
-/* Additional Prototypes for ALL interfaces */
-
-/* end of Additional Prototypes */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
diff --git a/src/vm/microsoft.comservices_i.c b/src/vm/microsoft.comservices_i.c
deleted file mode 100644
index f31a92f53e..0000000000
--- a/src/vm/microsoft.comservices_i.c
+++ /dev/null
@@ -1,173 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-#pragma warning( disable: 4049 )  /* more than 64k source lines */
-
-/* this ALWAYS GENERATED file contains the IIDs and CLSIDs */
-
-/* link this file in with the server and any clients */
-
-
- /* File created by MIDL compiler version 5.03.0280 */
-/* at Mon Jul 17 19:19:10 2000
- */
-/* Compiler settings for Z:\urt\inst\v1.x86chk\Microsoft.ComServices.idl:
-    Os (OptLev=s), W1, Zp8, env=Win32 (32b run), ms_ext, c_ext
-    error checks: allocation ref bounds_check enum stub_data 
-    VC __declspec() decoration level: 
-         __declspec(uuid()), __declspec(selectany), __declspec(novtable)
-         DECLSPEC_UUID(), MIDL_INTERFACE()
-*/
-//@@MIDL_FILE_HEADING(  )
-
-#if !defined(_M_IA64) && !defined(_M_AXP64)
-
-#include <rpc.h>
-#include <rpcndr.h>
-
-#ifdef __cplusplus
-extern "C"{
-#endif 
-
-#ifdef _MIDL_USE_GUIDDEF_
-
-#ifndef INITGUID
-#define INITGUID
-#include <guiddef.h>
-#undef INITGUID
-#else
-#include <guiddef.h>
-#endif
-
-#define MIDL_DEFINE_GUID(type,name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) \
-        DEFINE_GUID(name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8)
-
-#else // !_MIDL_USE_GUIDDEF_
-
-#ifndef __IID_DEFINED__
-#define __IID_DEFINED__
-
-typedef struct _IID
-{
-    unsigned long x;
-    unsigned short s1;
-    unsigned short s2;
-    unsigned char  c[8];
-} IID;
-
-#endif // __IID_DEFINED__
-
-#ifndef CLSID_DEFINED
-#define CLSID_DEFINED
-typedef IID CLSID;
-#endif // CLSID_DEFINED
-
-#define MIDL_DEFINE_GUID(type,name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) \
-        const type name = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
-
-#endif // !_MIDL_USE_GUIDDEF_
-
-MIDL_DEFINE_GUID(IID, LIBID_Microsoft_ComServices,0xD7F68C66,0x3833,0x3832,0xB6,0xD0,0xB7,0x96,0xBB,0x7D,0x2D,0xFF);
-
-
-MIDL_DEFINE_GUID(IID, IID_IRegistrationHelper,0x55E3EA25,0x55CB,0x4650,0x88,0x87,0x18,0xE8,0xD3,0x0B,0xB4,0xBC);
-
-
-MIDL_DEFINE_GUID(CLSID, CLSID_RegistrationHelperTx,0x89A86E7B,0xC229,0x4008,0x9B,0xAA,0x2F,0x5C,0x84,0x11,0xD7,0xE0);
-
-#undef MIDL_DEFINE_GUID
-
-#ifdef __cplusplus
-}
-#endif
-
-
-
-#endif /* !defined(_M_IA64) && !defined(_M_AXP64)*/
-
-
-#pragma warning( disable: 4049 )  /* more than 64k source lines */
-
-/* this ALWAYS GENERATED file contains the IIDs and CLSIDs */
-
-/* link this file in with the server and any clients */
-
-
- /* File created by MIDL compiler version 5.03.0280 */
-/* at Mon Jul 17 19:19:10 2000
- */
-/* Compiler settings for Z:\urt\inst\v1.x86chk\Microsoft.ComServices.idl:
-    Oicf (OptLev=i2), W1, Zp8, env=Win64 (32b run,appending), ms_ext, c_ext, robust
-    error checks: allocation ref bounds_check enum stub_data 
-    VC __declspec() decoration level: 
-         __declspec(uuid()), __declspec(selectany), __declspec(novtable)
-         DECLSPEC_UUID(), MIDL_INTERFACE()
-*/
-//@@MIDL_FILE_HEADING(  )
-
-#if defined(_M_IA64) || defined(_M_AXP64)
-
-#include <rpc.h>
-#include <rpcndr.h>
-
-#ifdef __cplusplus
-extern "C"{
-#endif 
-
-#ifdef _MIDL_USE_GUIDDEF_
-
-#ifndef INITGUID
-#define INITGUID
-#include <guiddef.h>
-#undef INITGUID
-#else
-#include <guiddef.h>
-#endif
-
-#define MIDL_DEFINE_GUID(type,name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) \
-        DEFINE_GUID(name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8)
-
-#else // !_MIDL_USE_GUIDDEF_
-
-#ifndef __IID_DEFINED__
-#define __IID_DEFINED__
-
-typedef struct _IID
-{
-    unsigned long x;
-    unsigned short s1;
-    unsigned short s2;
-    unsigned char  c[8];
-} IID;
-
-#endif // __IID_DEFINED__
-
-#ifndef CLSID_DEFINED
-#define CLSID_DEFINED
-typedef IID CLSID;
-#endif // CLSID_DEFINED
-
-#define MIDL_DEFINE_GUID(type,name,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) \
-        const type name = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
-
-#endif // !_MIDL_USE_GUIDDEF_
-
-MIDL_DEFINE_GUID(IID, LIBID_Microsoft_ComServices,0xD7F68C66,0x3833,0x3832,0xB6,0xD0,0xB7,0x96,0xBB,0x7D,0x2D,0xFF);
-
-
-MIDL_DEFINE_GUID(IID, IID_IRegistrationHelper,0x55E3EA25,0x55CB,0x4650,0x88,0x87,0x18,0xE8,0xD3,0x0B,0xB4,0xBC);
-
-
-MIDL_DEFINE_GUID(CLSID, CLSID_RegistrationHelperTx,0x89A86E7B,0xC229,0x4008,0x9B,0xAA,0x2F,0x5C,0x84,0x11,0xD7,0xE0);
-
-#undef MIDL_DEFINE_GUID
-
-#ifdef __cplusplus
-}
-#endif
-
-
-
-#endif /* defined(_M_IA64) || defined(_M_AXP64)*/
-
diff --git a/src/vm/perfdefaults.cpp b/src/vm/perfdefaults.cpp
deleted file mode 100644
index f6352bcd53..0000000000
--- a/src/vm/perfdefaults.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-//*************************************************************************************************
-// PerfDefaults.cpp
-// 
-
-// 
-// Implementation of the "PerformanceScenario" config option, which defines a workload-specific 
-// set of performance defaults.  The key point of the code below is that it be clear exactly what 
-// gets enabled for each scenario -- see the switch statements
-//
-//     for host STARTUP_FLAGS, in GetModifiedStartupFlags
-//     for environment, registry, or config CLRConfig values, in LookupConfigValue
-//     for other global initialization, in InitializeForScenario
-//
-//*************************************************************************************************
-
-#include "common.h"
-#include "perfdefaults.h"
-
-// Useful to the readability of lists of settings below
-#define MATCHES(a,b) (SString::_wcsicmp((a),(b)) == 0)
-
-// The scenario we have been asked to run under
-PerformanceDefaults::PerformanceScenario PerformanceDefaults::s_Scenario = Uninitialized;
-
-// See use in code:PerformanceDefaults:InitializeForScenario
-extern int32_t g_bLowMemoryFromHost;
-
-
-//
-// Initialize our system to provide performance defaults for a given scenario.
-// If the scenario name is not recognized, intentionally ignore it and operate as if not specified.
-//
- void PerformanceDefaults::InitializeForScenario(__in_opt LPWSTR scenarioName)
-{
-    LIMITED_METHOD_CONTRACT;
-
-    // First convert the scenario name to the corresponding enum value
-    s_Scenario = None;
-    if (scenarioName != NULL)
-    {
-        if (MATCHES(scenarioName, W("HighDensityWebHosting"))) s_Scenario = HighDensityWebHosting;
-    }
-
-    // Next do any scenario-specific initialization
-    switch (s_Scenario)
-    {
-        case None:
-            break;
-
-        case HighDensityWebHosting:
-            // Tell the hosting API that we want the GC to operate as if the machine is under memory pressure.
-            // This is a workaround because we do not want to expose "force low memory mode" as either a CLR
-            // config option or a host startup flag (the two types of knob that PerformanceDefaults can alter) and
-            // ASP.Net has not yet become a memory host.  When they do, this can be removed and they can
-            // make an initial call to ICLRMemoryNotificationCallback:OnMemoryNotification(eMemoryAvailableLow).
-            //
-            // Note that in order for ASP.Net to become a memory host the CLR will need to support profiler attach
-            // in that condition.
-            g_bLowMemoryFromHost = 1;
-            break;
-
-        case Uninitialized:
-            // Unreachable, but make GCC happy
-            break;
-    }
-
-    // Finally register our lookup function with the CLRConfig system so we get called when a 'MayHavePerformanceDefault' 
-    // config option is about to resolve to its runtime default
-    if (s_Scenario != None)
-    {
-        CLRConfig::RegisterGetPerformanceDefaultValueCallback(&LookupConfigValue);
-    }
-}
-
-
-//
-// Called at runtime startup to allow host-specified STARTUP_FLAGS to be overridden when running
-// under a scenario.
-//
-// Note that we are comfortable overriding the values the host has asked us to use (see
-// file:PerfDefaults.h), but we never want to override a value specified by a user to CLRConfig.
-// This comes up here because there are settings that are configurable through both systems.
-// So where an option has both STARTUP_FLAG A and CLRConfig value B, first check whether B has
-// been specified before altering the value of A.  This way, we maintain complete compatibility
-// with whatever the interaction of A and B has produced in the past.
-//
-STARTUP_FLAGS PerformanceDefaults::GetModifiedStartupFlags(STARTUP_FLAGS originalFlags)
-{
-    LIMITED_METHOD_CONTRACT;
-
-    DWORD newFlags = (DWORD)originalFlags;
-
-    switch (s_Scenario)
-    {
-        case None:
-            break;
-
-        case HighDensityWebHosting:
-            if (!CLRConfig::IsConfigOptionSpecified(W("gcServer"))) newFlags &= ~STARTUP_SERVER_GC;
-            if (!CLRConfig::IsConfigOptionSpecified(W("gcConcurrent"))) newFlags &= ~STARTUP_CONCURRENT_GC;
-            if (!CLRConfig::IsConfigOptionSpecified(W("gcTrimCommitOnLowMemory"))) newFlags |= STARTUP_TRIM_GC_COMMIT;
-
-            break;
-
-        case Uninitialized:
-            // Check that no request for startup flags happens before our code has been initialized 
-            // and given a chance to modify them.
-            _ASSERTE(!"PerformanceDefaults::InitializeForScenario should have already been called");
-            break;
-    }
-
-    return (STARTUP_FLAGS)newFlags;
-}
-
-
-//
-// Called by the CLRConfig system whenever a 'MayHavePerformanceDefault' config option is about 
-// to resolve to its runtime default (i.e. none of the corresponding environment variable, registry, or
-// config file values were specified).
-//
-BOOL PerformanceDefaults::LookupConfigValue(LPCWSTR name, DWORD *pValue)
-{
-    LIMITED_METHOD_CONTRACT;
-    _ASSERTE(pValue != NULL);
-
-    switch (s_Scenario)
-    {
-        case None:
-            return FALSE;
-    
-        case HighDensityWebHosting:
-            if (MATCHES(name, W("shadowCopyVerifyByTimestamp"))) { *pValue = 1; return TRUE; }
-            return FALSE;
-
-        case Uninitialized:
-            // Check that no request for a MayHavePerformanceDefault CLRConfig option happens 
-            // before our code has been initialized and given a chance to provide a default value.
-            _ASSERTE(!"PerformanceDefaults::InitializeForScenario should have already been called");
-            break;
-    }
-
-    return FALSE;
-}
-
diff --git a/src/vm/perfdefaults.h b/src/vm/perfdefaults.h
deleted file mode 100644
index 1420995a98..0000000000
--- a/src/vm/perfdefaults.h
+++ /dev/null
@@ -1,90 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-// 
-// --------------------------------------------------------------------------------------------------
-// PerfDefaults.h
-// 
-
-// 
-// Implementation of the "PerformanceScenario" config option, which defines a workload-specific 
-// set of performance defaults. 
-//
-// The motivation is that every release we work closely with a partner to understand the performance
-// of their scenario and provide CLR behavior to improve it.  Sometimes we are able to give them
-// an entirely different build of the CLR (because it happens to be on a different architecture, or
-// it needs to have a small size, etc), but not always.  Sometimes we are able to change the 
-// runtime to have the new behavior by default, but not always.  When neither applies, we fall to
-// the ugly option of a set of one-off config values for the scenario (or machine administrators)
-// to opt in.  This then creates the problem of a huge number of generic knobs that any application
-// can use in any combination.  It also means that as we add additional improvements for the same
-// scenario, we need to ask developers or machine administrators to keep up with the growing list.
-//
-// Our solution is to opt-in to a set of performance settings all at once and based on the workload.
-// When a recognized 'PerformanceScenario' is specified in a config file, we want the runtime to
-// operate with a defined set of performance settings.  This set may evolve over time to
-// automatically provide additional behavior to the same workload, just as we would for runtime
-// defaults.  Note however that a key design point is that in any conflict between these performance
-// settings and one that is explicitly set by the user, the explicit user setting wins.  Hence the
-// name PerformanceDefaults -- it is as if we had created a separate build of the runtime for a
-// particular scenario, changing only the default performance behavior, and continued to let people
-// opt in or opt-out individually to those settings that are important and general-purpose enough
-// to have an individual setting.
-//
-// To add a scenario,
-//     Update the PerformanceScenario enum and InitializeForScenario so that it is recognized
-//
-// To add an overridden host STARTUP_FLAG,
-//     Update the switch statement in GetModifiedStartupFlags; see note about IsConfigOptionSpecified
-//
-// To add an overridden CLRConfig default value,
-//     Mark it with LookupOption CLRConfig::MayHavePerformanceDefault in clrconfigvalues.h
-//     Update the switch statement in LookupConfigValue
-//     If a new CLRConfig option, decide if it needs to be a general-purpose switch (hopefully no)
-//         and if not create it as INTERNAL_
-//
-// --------------------------------------------------------------------------------------------------
-
-
-#ifndef __PerfDefaults_h__
-#define __PerfDefaults_h__
-
-class PerformanceDefaults
-{
-public:
-
-    static void InitializeForScenario(__in_opt LPWSTR scenarioName);
-
-    // Called at runtime startup to allow host-specified STARTUP_FLAGS to be overridden when running
-    // under a scenario.
-    //
-    // Note that this does not follow the model of "only override if not specified."  By the nature
-    // of the startup flags being bits, they are all specified (as on or off).  We have no way of
-    // knowing which the host actually care about and which were left as the runtime default
-    // out of lack of concern.  However we found that so far the specified startup flags are hard
-    // coded by the host (no way for the user to override at run time) and so we can build in
-    // to the set of defaults which the host allows us to override.
-    //
-    // In the future, if a host needs us to be able to override startup flags conditionally, the
-    // solution would be a new hosting API ICLRRuntimeInfo::SetOverridableStartupFlags.
-    static STARTUP_FLAGS GetModifiedStartupFlags(STARTUP_FLAGS originalFlags);
-
-    // Called by the CLRConfig system whenever a 'MayHavePerformanceDefault' config option is about 
-    // to resolve to its runtime default (i.e. none of the corresponding environment variable, 
-    // registry, or config file values were specified).
-    static BOOL LookupConfigValue(LPCWSTR name, DWORD *pValue);
-
-private:
-
-    enum PerformanceScenario
-    {
-        Uninitialized,
-        None,
-        HighDensityWebHosting,
-    };
-
-    static PerformanceScenario s_Scenario;
-
-};
-
-#endif //__PerfDefaults_h__
diff --git a/src/vm/wks/CMakeLists.txt b/src/vm/wks/CMakeLists.txt
index 1da2ab8477..3a796ae0ea 100644
--- a/src/vm/wks/CMakeLists.txt
+++ b/src/vm/wks/CMakeLists.txt
@@ -3,8 +3,6 @@ if (WIN32)
   add_precompiled_header(common.h ../common.cpp VM_SOURCES_WKS)
   # mscorlib.cpp does not compile with precompiled header file
   set_source_files_properties(../mscorlib.cpp PROPERTIES COMPILE_FLAGS "/Y-") 
-  # .c file cannot use cpp precompiled header 
-  set_source_files_properties(../microsoft.comservices_i.c PROPERTIES COMPILE_FLAGS "/Y-") 
 
   # asm files require preprocessing using cl.exe on arm32 and arm64
   if(CLR_CMAKE_PLATFORM_ARCH_ARM64)