diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationCore/PresentationCore.csproj b/src/Microsoft.DotNet.Wpf/src/PresentationCore/PresentationCore.csproj
index 12637b94e62..803ea40804d 100644
--- a/src/Microsoft.DotNet.Wpf/src/PresentationCore/PresentationCore.csproj
+++ b/src/Microsoft.DotNet.Wpf/src/PresentationCore/PresentationCore.csproj
@@ -48,7 +48,6 @@
     <Compile Include="$(WpfSharedDir)\MS\Internal\FreezableOperations.cs" />
     <Compile Include="$(WpfSharedDir)\MS\Internal\HashHelper.cs" />
     <Compile Include="$(WpfSharedDir)\MS\Internal\PointUtil.cs" />
-    <Compile Include="$(WpfSharedDir)\MS\Internal\GenericEnumerator.cs" />
     <Compile Include="$(WpfSharedDir)\MS\Internal\MimeTypeMapper.cs" />
     <Compile Include="$(WpfSharedDir)\MS\Internal\Pair.cs" />
     <Compile Include="$(WpfSharedDir)\MS\Internal\PartialList.cs" />
diff --git a/src/Microsoft.DotNet.Wpf/src/Shared/MS/Internal/GenericEnumerator.cs b/src/Microsoft.DotNet.Wpf/src/Shared/MS/Internal/GenericEnumerator.cs
deleted file mode 100644
index f9331191cc7..00000000000
--- a/src/Microsoft.DotNet.Wpf/src/Shared/MS/Internal/GenericEnumerator.cs
+++ /dev/null
@@ -1,143 +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.
-
-//------------------------------------------------------------------------------
-//
-//
-//                                             
-//  File:       GenericEnumerator.cs
-//------------------------------------------------------------------------------
-
-using System;
-using System.Collections;
-using System.Diagnostics;
-using System.Windows;
-using MS.Utility;
-
-#if PRESENTATION_CORE
-using SR=MS.Internal.PresentationCore.SR;
-#else
-using SR=System.Windows.SR;
-#endif
-
-namespace MS.Internal
-{
-    /// <summary>
-    /// GenericEnumerator
-    /// </summary>
-    internal class GenericEnumerator : IEnumerator
-    {
-        #region Delegates
-
-        internal delegate int GetGenerationIDDelegate();
-
-        #endregion
-
-        #region Constructors
-
-        private GenericEnumerator()
-        {
-        }
-
-        internal GenericEnumerator(IList array, GetGenerationIDDelegate getGenerationID)
-        {
-            _array     = array;
-            _count     = _array.Count;
-            _position  = -1;
-            _getGenerationID = getGenerationID;
-            _originalGenerationID = _getGenerationID();
-        }
-
-        #endregion
-
-        #region Private
-
-        private void VerifyCurrent()
-        {
-            if (   (-1 == _position)
-                || (_position >= _count))
-            {
-                throw new InvalidOperationException(SR.Enumerator_VerifyContext);
-            }
-        }
-
-        #endregion
-
-        #region IEnumerator
-
-        /// <summary>
-        /// Returns the object at the current location of the key times list.
-        /// Use the strongly typed version instead.
-        /// </summary>
-        object
-            IEnumerator.Current
-        {
-            get
-            {
-                VerifyCurrent();
-
-                return _current;
-            }
-        }
-
-        /// <summary>
-        /// Move to the next value in the key times list
-        /// </summary>
-        /// <returns>true if succeeded, false if at the end of the list</returns>
-        public bool MoveNext()
-        {
-            if (_getGenerationID() != _originalGenerationID)
-            {
-                throw new InvalidOperationException(SR.Enumerator_CollectionChanged);
-            }
-
-            _position++;
-
-            if (_position >= _count)
-            {
-                _position = _count;
-
-                return false;
-            }
-            else
-            {
-                Debug.Assert(_position >= 0);
-
-                _current = _array[_position];
-
-                return true;
-            }
-        }
-
-        /// <summary>
-        /// Move to the position before the first value in the list.
-        /// </summary>
-        public void Reset()
-        {
-            if (_getGenerationID() != _originalGenerationID)
-            {
-                throw new InvalidOperationException(SR.Enumerator_CollectionChanged);
-            }
-            else
-            {
-                _position = -1;
-            }
-        }
-
-        #endregion
-        
-        #region Data
-
-        private IList   _array;
-        private object  _current;
-        private int     _count;
-        private int     _position;
-        private int     _originalGenerationID;
-
-        private GetGenerationIDDelegate _getGenerationID;
-
-        #endregion
-    }
-}
-