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 5001f84afcc1b63444097ee2210d79a094b5a717..ca0d99f6d2ee3e99880423922f05623f515abefd 100644
--- a/Source/core/svg/SVGAElement.cpp
+++ b/Source/core/svg/SVGAElement.cpp
@@ -221,18 +221,6 @@ 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();