1 files changed, 2 insertions, 22 deletions
diff --git a/src/mscorlib/src/Microsoft/Win32/Registry.cs b/src/mscorlib/src/Microsoft/Win32/Registry.cs
index 4faf29da7f..3ee5f4648b 100644
--- a/src/mscorlib/src/Microsoft/Win32/Registry.cs
+++ b/src/mscorlib/src/Microsoft/Win32/Registry.cs
@@ -17,7 +17,6 @@ namespace Microsoft.Win32 {
     //This class contains only static members and does not need to be serializable.
     [ComVisible(true)]
     public static class Registry {
-        [System.Security.SecuritySafeCritical]  // auto-generated
         static Registry()
         { 
         }
@@ -63,17 +62,6 @@ namespace Microsoft.Win32 {
          * This is where current configuration information is stored.
          */
         public static readonly RegistryKey CurrentConfig      = RegistryKey.GetBaseKey(RegistryKey.HKEY_CURRENT_CONFIG);
-        
-#if !FEATURE_CORECLR
-        /**
-         * Dynamic Data Root Key.
-         * 
-         * LEGACY: This is where dynamic performance data is stored on Win9X.
-         * This does not exist on NT.
-         */
-        [Obsolete("The DynData registry key only works on Win9x, which is no longer supported by the CLR.  On NT-based operating systems, use the PerformanceData registry key instead.")]
-        public static readonly RegistryKey DynData            = RegistryKey.GetBaseKey(RegistryKey.HKEY_DYN_DATA);
-#endif
 
         //
         // Following function will parse a keyName and returns the basekey for it.
@@ -81,10 +69,9 @@ namespace Microsoft.Win32 {
         // If the keyName is not valid, we will throw ArgumentException.
         // The return value shouldn't be null. 
         //
-        [System.Security.SecurityCritical]  // auto-generated
         private static RegistryKey GetBaseKeyFromKeyName(string keyName, out string subKeyName) {
             if( keyName == null) {
-                throw new ArgumentNullException("keyName");
+                throw new ArgumentNullException(nameof(keyName));
             }
 
             string basekeyName;
@@ -116,13 +103,8 @@ namespace Microsoft.Win32 {
                 case "HKEY_CURRENT_CONFIG": 
                     basekey = Registry.CurrentConfig;
                     break;
-#if !FEATURE_CORECLR
-                case "HKEY_DYN_DATA": 
-                    basekey = RegistryKey.GetBaseKey(RegistryKey.HKEY_DYN_DATA);
-                    break;                    
-#endif
                 default:
-                    throw new ArgumentException(Environment.GetResourceString("Arg_RegInvalidKeyName", "keyName"));
+                    throw new ArgumentException(Environment.GetResourceString("Arg_RegInvalidKeyName", nameof(keyName)));
             }            
             if( i == -1 || i == keyName.Length) {
                 subKeyName = string.Empty;
@@ -133,7 +115,6 @@ namespace Microsoft.Win32 {
             return basekey;
         }
 
-        [System.Security.SecuritySafeCritical]  // auto-generated
         public static object GetValue(string keyName, string valueName, object defaultValue ) {
             string subKeyName;
             RegistryKey basekey = GetBaseKeyFromKeyName(keyName, out subKeyName);
@@ -154,7 +135,6 @@ namespace Microsoft.Win32 {
             SetValue(keyName, valueName, value, RegistryValueKind.Unknown);            
         }
         
-        [System.Security.SecuritySafeCritical]  // auto-generated
         public static void SetValue(string keyName, string valueName, object value, RegistryValueKind valueKind ) {
             string subKeyName; 
             RegistryKey basekey = GetBaseKeyFromKeyName(keyName, out subKeyName);