Remove ~1750 superfluous includes from core

Source/core/platform/ThreadGlobalData.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  *
  */
 
 #include "config.h"
 #include "core/platform/ThreadGlobalData.h"
 
 #include "core/dom/EventNames.h"
 #include "core/inspector/InspectorCounters.h"
 #include "core/loader/cache/CachedResourceRequestInitiators.h"
 #include "core/platform/ThreadTimers.h"
-#include "wtf/MainThread.h"
-#include "wtf/ThreadSpecific.h"
-#include "wtf/Threading.h"
-#include "wtf/UnusedParam.h"
 #include "wtf/WTFThreadData.h"
 #include "wtf/text/StringImpl.h"
 
 using namespace WTF;
 
 namespace WebCore {
 
 ThreadSpecific<ThreadGlobalData>* ThreadGlobalData::staticData;
 
 ThreadGlobalData::ThreadGlobalData()
@@ skipping 18 matching lines @@
 }
 
 void ThreadGlobalData::destroy()
 {
     m_inspectorCounters.clear();
     m_eventNames.clear();
     m_threadTimers.clear();
 }
 
 } // namespace WebCore