Move remove(All)Client(s)FromCache to RenderSVGResourceContainer

Source/core/rendering/svg/RenderSVGResource.h

Index: Source/core/rendering/svg/RenderSVGResource.h
diff --git a/Source/core/rendering/svg/RenderSVGResource.h b/Source/core/rendering/svg/RenderSVGResource.h
index 653594a52fa51652bbe464983f148cf775b445eb..412c0f6dfca74c4b1a0340fd9e2dfe3e8d982993 100644
--- a/Source/core/rendering/svg/RenderSVGResource.h
+++ b/Source/core/rendering/svg/RenderSVGResource.h
@@ -51,9 +51,6 @@ public:
     RenderSVGResource() { }
     virtual ~RenderSVGResource() { }
 
-    virtual void removeAllClientsFromCache(bool markForInvalidation = true) = 0;
-    virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) = 0;
-
     virtual bool applyResource(RenderObject*, RenderStyle*, GraphicsContext*, RenderSVGResourceModeFlags);
     virtual void postApplyResource(GraphicsContext*) { }