Remove SVGTests related code from SVGGraphicsElement subclasses

Source/core/svg/SVGPolyElement.h

Index: Source/core/svg/SVGPolyElement.h
diff --git a/Source/core/svg/SVGPolyElement.h b/Source/core/svg/SVGPolyElement.h
index 0e0435dc44967e10ee0fbed8ea9ad7ec09d72e3b..7a031d3f7f5ac329ef436f958d793842592f4687 100644
--- a/Source/core/svg/SVGPolyElement.h
+++ b/Source/core/svg/SVGPolyElement.h
@@ -60,11 +60,6 @@ private:
         DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
     END_DECLARE_ANIMATED_PROPERTIES
 
-    // SVGTests
-    virtual void synchronizeRequiredFeatures() { SVGTests::synchronizeRequiredFeatures(this); }
-    virtual void synchronizeRequiredExtensions() { SVGTests::synchronizeRequiredExtensions(this); }
-    virtual void synchronizeSystemLanguage() { SVGTests::synchronizeSystemLanguage(this); }
-
 protected:
     mutable SVGSynchronizableAnimatedProperty<SVGPointList> m_points;
 };