Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGSwitchElement.cpp

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 11 matching lines @@
 
 #include "core/svg/SVGSwitchElement.h"
 
 #include "SVGNames.h"
 #include "core/frame/UseCounter.h"
 #include "core/rendering/svg/RenderSVGTransformableContainer.h"
 
 namespace WebCore {
 
 // Animated property definitions
-DEFINE_ANIMATED_BOOLEAN(SVGSwitchElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
 
 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGSwitchElement)
-    REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
 END_REGISTER_ANIMATED_PROPERTIES
 
 inline SVGSwitchElement::SVGSwitchElement(Document& document)
     : SVGGraphicsElement(SVGNames::switchTag, document)
 {
     ScriptWrappable::init(this);
     registerAnimatedPropertiesForSVGSwitchElement();
 
     UseCounter::count(document, UseCounter::SVGSwitchElement);
@@ skipping 23 matching lines @@
 
     return shouldCreateRenderer && SVGGraphicsElement::childShouldCreateRenderer(child);
 }
 
 RenderObject* SVGSwitchElement::createRenderer(RenderStyle*)
 {
     return new RenderSVGTransformableContainer(this);
 }
 
 }