diff --git a/src/System.Management.Automation/engine/interpreter/Utilities.cs b/src/System.Management.Automation/engine/interpreter/Utilities.cs
index de37d530749..7951554ffab 100644
--- a/src/System.Management.Automation/engine/interpreter/Utilities.cs
+++ b/src/System.Management.Automation/engine/interpreter/Utilities.cs
@@ -754,31 +754,6 @@ public T Update(T newValue)
 
         #region Storage implementation
 
-#if SILVERLIGHT
-        private static int _cfThreadIdDispenser = 1;
-
-        [ThreadStatic]
-        private static int _cfThreadId;
-
-        private static int GetCurrentThreadId() {
-            if (PlatformAdaptationLayer.IsCompactFramework) {
-                // CF doesn't index threads by small integers, so we need to do the indexing ourselves:
-                int id = _cfThreadId;
-                if (id == 0) {
-                    _cfThreadId = id = Interlocked.Increment(ref _cfThreadIdDispenser);
-                }
-                return id;
-            } else {
-                return Thread.CurrentThread.ManagedThreadId;
-            }
-        }
-#else
-        private static int GetCurrentThreadId()
-        {
-            return Thread.CurrentThread.ManagedThreadId;
-        }
-#endif
-
         /// <summary>
         /// Gets the StorageInfo for the current thread.
         /// </summary>
@@ -789,7 +764,7 @@ public StorageInfo GetStorageInfo()
 
         private StorageInfo GetStorageInfo(StorageInfo[] curStorage)
         {
-            int threadId = GetCurrentThreadId();
+            int threadId = Thread.CurrentThread.ManagedThreadId;
 
             // fast path if we already have a value in the array
             if (curStorage != null && curStorage.Length > threadId)
@@ -839,7 +814,7 @@ private StorageInfo CreateStorageInfo()
             StorageInfo[] curStorage = s_updating;
             try
             {
-                int threadId = GetCurrentThreadId();
+                int threadId = Thread.CurrentThread.ManagedThreadId;
                 StorageInfo newInfo = new StorageInfo(Thread.CurrentThread);
 
                 // set to updating while potentially resizing/mutating, then we'll