Fix a crash. The removed functionality should NEVER have been there anyway.

Sources/Plasma/FeatureLib/pfPython/pyVaultNode.cpp

@@ -437,10 +437,8 @@ PyObject* pyVaultNode::AddNode(pyVaultNode* pynode, PyObject* cbObject, UInt32 c
                           cb
         );
 
-        PyObject * nodeRef = cb->fPyNodeRef = pyVaultNodeRef::New(fNode, pynode->fNode);
-        Py_INCREF(nodeRef); // incref it, because we MUST return a new PyObject, and the callback "steals" the ref from us
-        cb->SetNode(pynode->fNode);
-        return nodeRef;
+       // just return a None object
+       PYTHON_RETURN_NONE;
     }
     else
     {