Remove unused includes from various .cpp files in core/

Source/core/page/animation/CompositeAnimation.cpp

 /*
  * Copyright (C) 2007 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
@@ skipping 16 matching lines @@
  */
 
 #include "config.h"
 #include "core/page/animation/CompositeAnimation.h"
 
 #include "CSSPropertyNames.h"
 #include "core/page/animation/AnimationControllerPrivate.h"
 #include "core/page/animation/CSSPropertyAnimation.h"
 #include "core/page/animation/ImplicitAnimation.h"
 #include "core/page/animation/KeyframeAnimation.h"
-#include "core/rendering/RenderObject.h"
 #include "core/rendering/style/RenderStyle.h"
 
 namespace WebCore {
 
 CompositeAnimation::~CompositeAnimation()
 {
     // Toss the refs to all animations, but make sure we remove them from
     // any waiting lists first.
 
     clearRenderer();
@@ skipping 473 matching lines @@
             ImplicitAnimation* anim = it->value.get();
             if (anim->running())
                 ++count;
         }
     }
     
     return count;
 }
 
 } // namespace WebCore