1 files changed, 0 insertions, 79 deletions
diff --git a/mcs/class/System.ComponentModel.Composition/src/ComponentModel/Microsoft/Internal/Lock.cs b/mcs/class/System.ComponentModel.Composition/src/ComponentModel/Microsoft/Internal/Lock.cs
deleted file mode 100644
index 7cd7ac2ee5e..00000000000
--- a/mcs/class/System.ComponentModel.Composition/src/ComponentModel/Microsoft/Internal/Lock.cs
+++ /dev/null
@@ -1,79 +0,0 @@
-// -----------------------------------------------------------------------
-// Copyright (c) Microsoft Corporation.  All rights reserved.
-// -----------------------------------------------------------------------
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading;
-
-namespace Microsoft.Internal
-{
-    internal sealed class Lock : IDisposable
-    {
-#if (!SILVERLIGHT)
-        private ReaderWriterLockSlim _thisLock = new ReaderWriterLockSlim(LockRecursionPolicy.NoRecursion);
-        private int _isDisposed = 0;
-        public void EnterReadLock()
-        {
-            this._thisLock.EnterReadLock();
-        }
-
-        public void EnterWriteLock()
-        {
-            this._thisLock.EnterWriteLock();
-        }
-
-        public void ExitReadLock()
-        {
-            this._thisLock.ExitReadLock();
-        }
-
-        public void ExitWriteLock()
-        {
-            this._thisLock.ExitWriteLock();
-        }
-
-        public void Dispose()
-        {
-            if (Interlocked.CompareExchange(ref this._isDisposed, 1, 0) == 0)
-            {
-                this._thisLock.Dispose();
-            }
-        }
-
-#else
-        // ReaderWriterLockSlim is not yet implemented on SilverLight
-        // Satisfies our requirements until it is implemented
-        object _thisLock = new object();
-
-        public Lock()
-        {
-        }
-
-        public void EnterReadLock()
-        {
-            Monitor.Enter(this._thisLock);
-        }
-
-        public void EnterWriteLock()
-        {
-            Monitor.Enter(this._thisLock);
-        }
-
-        public void ExitReadLock()
-        {
-            Monitor.Exit(this._thisLock);
-        }
-
-        public void ExitWriteLock()
-        {
-            Monitor.Exit(this._thisLock);
-        }
-
-        public void Dispose()
-        {
-        }
-#endif
-    }
-}