Cleanup thread_local_storage on Windows

base/threading/thread_local_storage.h

Index: base/threading/thread_local_storage.h
===================================================================
--- base/threading/thread_local_storage.h	(revision 139374)
+++ base/threading/thread_local_storage.h	(working copy)
@@ -86,19 +86,6 @@
     DISALLOW_COPY_AND_ASSIGN(Slot);
   };
 
-#if defined(OS_WIN)
-  // Function called when on thread exit to call TLS
-  // destructor functions.  This function is used internally.
-  static void ThreadExit();
-
- private:
-  // Function to lazily initialize our thread local storage.
-  static void **Initialize();
-
-  static long tls_key_;
-  static long tls_max_;
-#endif  // OS_WIN
-
   DISALLOW_COPY_AND_ASSIGN(ThreadLocalStorage);
 };