Remove unused member variable

Change-Id: Ia5e6fd8a8bf405a3b48ea4e53762623db37378dd
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

share/qtcreator/qml/qmlpuppet/instances/nodeinstancesignalspy.h

@@ -61,7 +61,6 @@ private:
     QHash<int, QString> m_indexPropertyHash;
     QObjectList m_registeredObjectList;
     ObjectNodeInstanceWeakPointer m_objectNodeInstance;
-    QMetaObject m_metaObject;
 };
 
 } // namespace Internal