Convert remaining RenderSVG* nodes to RenderObject::isChildAllowed

Source/core/svg/SVGAElement.cpp

Index: Source/core/svg/SVGAElement.cpp
diff --git a/Source/core/svg/SVGAElement.cpp b/Source/core/svg/SVGAElement.cpp
index 7d4ec31312e0199a591873016007c36ad862abd2..2e7d55fa67c7e16c98b3fc8a0acb45a186eb6528 100644
--- a/Source/core/svg/SVGAElement.cpp
+++ b/Source/core/svg/SVGAElement.cpp
@@ -220,18 +220,6 @@ bool SVGAElement::isKeyboardFocusable() const
     return false;
 }
 
-bool SVGAElement::childShouldCreateRenderer(const Node& child) const
-{
-    // http://www.w3.org/2003/01/REC-SVG11-20030114-errata#linking-text-environment
-    // The 'a' element may contain any element that its parent may contain, except itself.
-    if (child.hasTagName(SVGNames::aTag))
-        return false;
-    if (parentNode() && parentNode()->isSVGElement())
-        return toSVGElement(parentNode())->childShouldCreateRenderer(child);
-
-    return SVGGraphicsElement::childShouldCreateRenderer(child);
-}
-
 bool SVGAElement::willRespondToMouseClickEvents()
 {
     return isLink() || SVGGraphicsElement::willRespondToMouseClickEvents();