[SVG] SVGAnimatedString{,List} migration to new SVG property impl.

Source/core/svg/SVGAnimationElement.h

Index: Source/core/svg/SVGAnimationElement.h
diff --git a/Source/core/svg/SVGAnimationElement.h b/Source/core/svg/SVGAnimationElement.h
index c63f5a5f88b4b52a77e64ee743f5b7c7a3083b39..bec165a6e7b609cf185df191b8afad1f91c48356 100644
--- a/Source/core/svg/SVGAnimationElement.h
+++ b/Source/core/svg/SVGAnimationElement.h
@@ -227,11 +227,6 @@ private:
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGAnimationElement)
     END_DECLARE_ANIMATED_PROPERTIES
 
-    // SVGTests
-    virtual void synchronizeRequiredFeatures() OVERRIDE FINAL { SVGTests::synchronizeRequiredFeatures(this); }
-    virtual void synchronizeRequiredExtensions() OVERRIDE FINAL { SVGTests::synchronizeRequiredExtensions(this); }
-    virtual void synchronizeSystemLanguage() OVERRIDE FINAL { SVGTests::synchronizeSystemLanguage(this); }
-
     void setCalcMode(const AtomicString&);
 
     bool m_animationValid;