SVG: SVGAnimateElement should not cache |m_animatedElements|

Source/core/svg/SVGAnimatedNumber.cpp

 /*
  * Copyright (C) 2014 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 
 #include "core/svg/SVGAnimatedNumber.h"
 #include "core/svg/SVGAnimatedNumberOptionalNumber.h"
 
 namespace WebCore {
 
 void SVGAnimatedNumber::synchronizeAttribute()
 {
-    ASSERT(needsSynchronizeAttribute());
     if (m_parentNumberOptionalNumber) {
         m_parentNumberOptionalNumber->synchronizeAttribute();
         return;
     }
 
     SVGAnimatedProperty<SVGNumber>::synchronizeAttribute();
 }
 
 }