Remove code to support Objective-C bindings

Source/core/dom/NodeIterator.h

Index: Source/core/dom/NodeIterator.h
diff --git a/Source/core/dom/NodeIterator.h b/Source/core/dom/NodeIterator.h
index 7db7758544d3c455bc0a621a226e58afa8117159..cb81a01dab748351415eb72a22cc2275a23ca8c5 100644
--- a/Source/core/dom/NodeIterator.h
+++ b/Source/core/dom/NodeIterator.h
@@ -53,11 +53,6 @@ namespace WebCore {
         // This function is called before any node is removed from the document tree.
         void nodeWillBeRemoved(Node*);
 
-        // Do not call these functions. They are just scaffolding to support the Objective-C bindings.
-        // They operate in the main thread normal world, and they swallow JS exceptions.
-        PassRefPtr<Node> nextNode(ExceptionCode& ec) { return nextNode(scriptStateFromNode(mainThreadNormalWorld(), referenceNode()), ec); }
-        PassRefPtr<Node> previousNode(ExceptionCode& ec) { return previousNode(scriptStateFromNode(mainThreadNormalWorld(), referenceNode()), ec); }
-
     private:
         NodeIterator(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>, bool expandEntityReferences);