1 files changed, 0 insertions, 57 deletions
diff --git a/src/mscorlib/src/System/Threading/LockCookie.cs b/src/mscorlib/src/System/Threading/LockCookie.cs
deleted file mode 100644
index c1fbfd828e..0000000000
--- a/src/mscorlib/src/System/Threading/LockCookie.cs
+++ /dev/null
@@ -1,57 +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.
-
-//
-/*============================================================
-**
-**
-**
-** Purpose: Defines the lock that implements 
-**          single-writer/multiple-reader semantics
-**
-**
-===========================================================*/
-
-namespace System.Threading {
-
-    using System;
-    [System.Runtime.InteropServices.ComVisible(true)]
-    public struct LockCookie
-    {
-        private int _dwFlags;
-        private int _dwWriterSeqNum;
-        private int _wReaderAndWriterLevel;
-        private int _dwThreadID;
-
-        public override int GetHashCode()
-        {
-            return _dwFlags + _dwWriterSeqNum + _wReaderAndWriterLevel + _dwThreadID;
-        }
-        
-        public override bool Equals(Object obj)
-        {
-            if (obj is LockCookie)
-                return Equals((LockCookie)obj);
-            else
-                return false;
-        }
-        
-        public bool Equals(LockCookie obj)
-        {
-            return obj._dwFlags == _dwFlags && obj._dwWriterSeqNum == _dwWriterSeqNum &&
-                obj._wReaderAndWriterLevel == _wReaderAndWriterLevel && obj._dwThreadID == _dwThreadID;
-        }
-        
-        public static bool operator ==(LockCookie a, LockCookie b)
-        {
-            return a.Equals(b);
-        }
-        
-        public static bool operator !=(LockCookie a, LockCookie b)
-        {
-            return !(a == b);
-        }
-    }
-}
-