QmlDesigner.ComponentView: m_comboBoxList is not used

Change-Id: I4e81af41337a6d842dc16232b0f01527b353274a
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

src/plugins/qmldesigner/components/integration/componentview.h

@@ -120,7 +120,6 @@ private: //functions
     int indexForNode(const ModelNode &node);
 
 private:
-    QList<QComboBox*> m_comboBoxList;
     QStandardItemModel *m_standardItemModel;
     ComponentAction *m_componentAction;
 };