Node.insertBefore and Node.appendChild do not use custom binding anymore

Source/bindings/core/v8/custom/V8NodeCustom.cpp

Index: Source/bindings/core/v8/custom/V8NodeCustom.cpp
diff --git a/Source/bindings/core/v8/custom/V8NodeCustom.cpp b/Source/bindings/core/v8/custom/V8NodeCustom.cpp
index 80ad75a95086a945f167ca65eb3e56db4ba1d230..eb522180efbe7f08e8539500793785fd51beeb62 100644
--- a/Source/bindings/core/v8/custom/V8NodeCustom.cpp
+++ b/Source/bindings/core/v8/custom/V8NodeCustom.cpp
@@ -58,22 +58,6 @@ namespace WebCore {
 
 // These functions are custom to prevent a wrapper lookup of the return value which is always
 // part of the arguments.
-void V8Node::insertBeforeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
-{
-    v8::Handle<v8::Object> holder = info.Holder();
-    Node* impl = V8Node::toNative(holder);
-
-    CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;
-
-    ExceptionState exceptionState(ExceptionState::ExecutionContext, "insertBefore", "Node", info.Holder(), info.GetIsolate());
-    Node* newChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[0]);
-    Node* refChild = V8Node::toNativeWithTypeCheck(info.GetIsolate(), info[1]);
-    impl->insertBefore(newChild, refChild, exceptionState);
-    if (exceptionState.throwIfNeeded())
-        return;
-    v8SetReturnValue(info, info[0]);
-}
-
 void V8Node::replaceChildMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     v8::Handle<v8::Object> holder = info.Holder();