1 files changed, 0 insertions, 89 deletions
diff --git a/src/mscorlib/src/System/Collections/StructuralComparisons.cs b/src/mscorlib/src/System/Collections/StructuralComparisons.cs
deleted file mode 100644
index 685af59c4b..0000000000
--- a/src/mscorlib/src/System/Collections/StructuralComparisons.cs
+++ /dev/null
@@ -1,89 +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.
-
-// 
-
-using System;
-
-namespace System.Collections {
-    public static class StructuralComparisons {
-
-        private static volatile IComparer s_StructuralComparer;
-        private static volatile IEqualityComparer s_StructuralEqualityComparer;
-
-        public static IComparer StructuralComparer {
-            get {
-                IComparer comparer = s_StructuralComparer;
-                if (comparer == null) {
-                    comparer = new StructuralComparer();
-                    s_StructuralComparer = comparer;
-                }
-                return comparer;
-            }
-        }
-
-        public static IEqualityComparer StructuralEqualityComparer {
-            get {
-                IEqualityComparer comparer = s_StructuralEqualityComparer;
-                if (comparer == null) {
-                    comparer = new StructuralEqualityComparer();
-                    s_StructuralEqualityComparer = comparer;
-                }
-                return comparer;
-            }
-        }
-    }
-
-    [Serializable]
-    internal class StructuralEqualityComparer : IEqualityComparer {
-        public new bool Equals(Object x, Object y) {
-            if (x != null) {
-
-                IStructuralEquatable seObj = x as IStructuralEquatable;
-
-                if (seObj != null){
-                    return seObj.Equals(y, this);
-                }
-
-                if (y != null) {
-                    return x.Equals(y);
-                } else {
-                    return false;
-                }
-            }
-            if (y != null) return false;
-            return true;
-        }
-
-        public int GetHashCode(Object obj) {
-            if (obj == null) return 0;
-
-            IStructuralEquatable seObj = obj as IStructuralEquatable;
-
-            if (seObj != null) {
-                return seObj.GetHashCode(this);
-            }
-
-            return obj.GetHashCode();
-        }
-    }
-
-    [Serializable]
-    internal class StructuralComparer : IComparer {
-        public int Compare(Object x, Object y) {
-
-            if (x == null) return y == null ? 0 : -1;
-            if (y == null) return 1;
-
-            IStructuralComparable scX = x as IStructuralComparable;
-
-            if (scX != null) {
-                return scX.CompareTo(y, this);
-            }
-
-            return Comparer.Default.Compare(x, y);
-        }
-    }        
-
-}