Get rid of explict editor dependency from text field

Source/core/loader/EmptyClients.h

Index: Source/core/loader/EmptyClients.h
diff --git a/Source/core/loader/EmptyClients.h b/Source/core/loader/EmptyClients.h
index 6fb0601fa549a6a97278285432cb586a553141f9..74c371953a64114bb2160c96099bffaf41a3c023 100644
--- a/Source/core/loader/EmptyClients.h
+++ b/Source/core/loader/EmptyClients.h
@@ -304,10 +304,6 @@ public:
     virtual void redo() OVERRIDE { }
 
     virtual void handleKeyboardEvent(KeyboardEvent*) OVERRIDE { }
-
-    virtual void textFieldDidEndEditing(Element*) OVERRIDE { }
-    virtual void textDidChangeInTextField(Element*) OVERRIDE { }
-    virtual bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*) OVERRIDE { return false; }
 };
 
 class EmptyContextMenuClient : public ContextMenuClient {