1 files changed, 0 insertions, 127 deletions
diff --git a/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/ConcurrentSet.cs b/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/ConcurrentSet.cs
deleted file mode 100644
index 76c01c6c06..0000000000
--- a/src/mscorlib/src/System/Diagnostics/Eventing/TraceLogging/ConcurrentSet.cs
+++ /dev/null
@@ -1,127 +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;
-using Interlocked = System.Threading.Interlocked;
-
-#if ES_BUILD_STANDALONE
-namespace Microsoft.Diagnostics.Tracing
-#else
-namespace System.Diagnostics.Tracing
-#endif
-{
-    /// <summary>
-    /// TraceLogging: A very simple lock-free add-only dictionary.
-    /// Warning: this is a copy-by-value type. Copying performs a snapshot.
-    /// Accessing a readonly field always makes a copy of the field, so the
-    /// GetOrAdd method will not work as expected if called on a readonly field.
-    /// </summary>
-    /// <typeparam name="KeyType">
-    /// The type of the key, used for TryGet.
-    /// </typeparam>
-    /// <typeparam name="ItemType">
-    /// The type of the item, used for GetOrAdd.
-    /// </typeparam>
-    internal struct ConcurrentSet<KeyType, ItemType>
-        where ItemType : ConcurrentSetItem<KeyType, ItemType>
-    {
-        private ItemType[] items;
-
-        public ItemType TryGet(KeyType key)
-        {
-            ItemType item;
-            var oldItems = this.items;
-
-            if (oldItems != null)
-            {
-                var lo = 0;
-                var hi = oldItems.Length;
-                do
-                {
-                    int i = (lo + hi) / 2;
-                    item = oldItems[i];
-
-                    int cmp = item.Compare(key);
-                    if (cmp == 0)
-                    {
-                        goto Done;
-                    }
-                    else if (cmp < 0)
-                    {
-                        lo = i + 1;
-                    }
-                    else
-                    {
-                        hi = i;
-                    }
-                }
-                while (lo != hi);
-            }
-
-            item = null;
-
-        Done:
-
-            return item;
-        }
-
-        public ItemType GetOrAdd(ItemType newItem)
-        {
-            ItemType item;
-            var oldItems = this.items;
-            ItemType[] newItems;
-
-        Retry:
-
-            if (oldItems == null)
-            {
-                newItems = new ItemType[] { newItem };
-            }
-            else
-            {
-                var lo = 0;
-                var hi = oldItems.Length;
-                do
-                {
-                    int i = (lo + hi) / 2;
-                    item = oldItems[i];
-
-                    int cmp = item.Compare(newItem);
-                    if (cmp == 0)
-                    {
-                        goto Done;
-                    }
-                    else if (cmp < 0)
-                    {
-                        lo = i + 1;
-                    }
-                    else
-                    {
-                        hi = i;
-                    }
-                }
-                while (lo != hi);
-
-                int oldLength = oldItems.Length;
-                newItems = new ItemType[oldLength + 1];
-                Array.Copy(oldItems, 0, newItems, 0, lo);
-                newItems[lo] = newItem;
-                Array.Copy(oldItems, lo, newItems, lo + 1, oldLength - lo);
-            }
-
-            newItems = Interlocked.CompareExchange(ref this.items, newItems, oldItems);
-            if (oldItems != newItems)
-            {
-                oldItems = newItems;
-                goto Retry;
-            }
-
-            item = newItem;
-
-        Done:
-
-            return item;
-        }
-    }
-}