Drop [LegacyImplementedInBaseClass] from SVGURIReference IDL interface

Source/core/svg/SVGAElement.h

Index: Source/core/svg/SVGAElement.h
diff --git a/Source/core/svg/SVGAElement.h b/Source/core/svg/SVGAElement.h
index ba2c9a616eca5d6581b36fa793a1f8394032abe6..64519d23fe0841c838c50a630043bd901a32735d 100644
--- a/Source/core/svg/SVGAElement.h
+++ b/Source/core/svg/SVGAElement.h
@@ -33,7 +33,6 @@ class SVGAElement FINAL : public SVGGraphicsElement,
 public:
     static PassRefPtr<SVGAElement> create(Document&);
     SVGAnimatedString* svgTarget() { return m_svgTarget.get(); }
-    SVGAnimatedString* href() { return m_href.get(); }
 
 private:
     explicit SVGAElement(Document&);
@@ -56,7 +55,6 @@ private:
     virtual bool willRespondToMouseClickEvents() OVERRIDE;
 
     RefPtr<SVGAnimatedString> m_svgTarget;
-    RefPtr<SVGAnimatedString> m_href;
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGAElement)
         // This declaration used to define a non-virtual "String& target() const" method, that clashes with "virtual String Element::target() const".
         // That's why it has been renamed to "svgTarget", the CodeGenerators take care of calling svgTargetAnimated() instead of targetAnimated(), see CodeGenerator.pm.