Remove duplicated headers from core/

Source/core/html/shadow/DateTimeEditElement.cpp

 /*
  * Copyright (C) 2012 Google 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 19 matching lines @@
 #include "HTMLNames.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/dom/Text.h"
 #include "core/events/MouseEvent.h"
 #include "core/html/forms/DateTimeFieldsState.h"
 #include "core/html/shadow/DateTimeFieldElements.h"
 #include "core/html/shadow/ShadowElementNames.h"
 #include "core/platform/graphics/FontCache.h"
 #include "core/rendering/style/RenderStyle.h"
 #include "core/rendering/style/StyleInheritedData.h"
-#include "platform/DateComponents.h"
 #include "platform/text/DateTimeFormat.h"
 #include "platform/text/PlatformLocale.h"
 #include "wtf/DateMath.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 using namespace WTF::Unicode;
 
 class DateTimeEditBuilder : private DateTimeFormat::TokenHandler {
@@ skipping 740 matching lines @@
 {
     DateTimeFieldsState dateTimeFieldsState;
     for (size_t fieldIndex = 0; fieldIndex < m_fields.size(); ++fieldIndex)
         m_fields[fieldIndex]->populateDateTimeFieldsState(dateTimeFieldsState);
     return dateTimeFieldsState;
 }
 
 } // namespace WebCore
 
 #endif