Remove remaining callers of deprecatedShadowAncestorNode

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 25d4bfeddc71f5eb1f27bfa574eac9c872386a53..e445aad8bcc1b9362635a26dc623bcb633c69186 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -1141,14 +1141,6 @@ Element* Node::shadowHost() const
     return 0;
 }
 
-Node* Node::deprecatedShadowAncestorNode() const
-{
-    if (ShadowRoot* root = containingShadowRoot())
-        return root->host();
-
-    return const_cast<Node*>(this);
-}
-
 ShadowRoot* Node::containingShadowRoot() const
 {
     Node& root = treeScope().rootNode();