Remove SVGTests related code from SVGGraphicsElement subclasses

Source/core/svg/SVGImageElement.h

Index: Source/core/svg/SVGImageElement.h
diff --git a/Source/core/svg/SVGImageElement.h b/Source/core/svg/SVGImageElement.h
index d5d7e6a6c9acf3605bd0a38bd4f5d373fc05da2d..9dd3f421f90ce55f1177c06b77211f40ad0dea7c 100644
--- a/Source/core/svg/SVGImageElement.h
+++ b/Source/core/svg/SVGImageElement.h
@@ -72,11 +72,6 @@ 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); }
-
     SVGImageLoader m_imageLoader;
 };