Remove duplicated headers from core/

Source/core/rendering/RenderMenuList.cpp

 /*
  * This file is part of the select element renderer in WebCore.
  *
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *               2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 26 matching lines @@
 #include "core/html/HTMLSelectElement.h"
 #include "core/page/Chrome.h"
 #include "core/frame/Frame.h"
 #include "core/frame/FrameView.h"
 #include "core/page/Page.h"
 #include "core/platform/graphics/FontCache.h"
 #include "core/rendering/RenderBR.h"
 #include "core/rendering/RenderScrollbar.h"
 #include "core/rendering/RenderTheme.h"
 #include "core/rendering/RenderView.h"
-#include "platform/PopupMenu.h"
 #include "platform/geometry/IntSize.h"
 
 using namespace std;
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 RenderMenuList::RenderMenuList(Element* element)
     : RenderFlexibleBox(element)
@@ skipping 542 matching lines @@
 {
     setTextFromOption(selectElement()->listToOptionIndex(listIndex));
 }
 
 FontSelector* RenderMenuList::fontSelector() const
 {
     return document().styleResolver()->fontSelector();
 }
 
 }