1 files changed, 0 insertions, 34 deletions
diff --git a/src/mscorlib/src/System/Collections/Generic/IReadOnlyCollection.cs b/src/mscorlib/src/System/Collections/Generic/IReadOnlyCollection.cs
deleted file mode 100644
index 13bc718760..0000000000
--- a/src/mscorlib/src/System/Collections/Generic/IReadOnlyCollection.cs
+++ /dev/null
@@ -1,34 +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.
-
-/*============================================================
-**
-** Interface:  IReadOnlyCollection<T>
-** 
-** 
-**
-** Purpose: Base interface for read-only generic lists.
-** 
-===========================================================*/
-using System;
-using System.Diagnostics.Contracts;
-using System.Runtime.CompilerServices;
-
-namespace System.Collections.Generic
-{
-
-    // Provides a read-only, covariant view of a generic list.
-
-    // Note that T[] : IReadOnlyList<T>, and we want to ensure that if you use
-    // IList<YourValueType>, we ensure a YourValueType[] can be used 
-    // without jitting.  Hence the TypeDependencyAttribute on SZArrayHelper.
-    // This is a special workaround internally though - see VM\compile.cpp.
-    // The same attribute is on IList<T>, IEnumerable<T>, ICollection<T>, and IReadOnlyList<T>.
-    [TypeDependencyAttribute("System.SZArrayHelper")]
-    // If we ever implement more interfaces on IReadOnlyCollection, we should also update RuntimeTypeCache.PopulateInterfaces() in rttype.cs
-    public interface IReadOnlyCollection<out T> : IEnumerable<T>
-    {
-        int Count { get; }
-    }
-}