Master element: improve how the comment is displayed when there isn't linked to a slave

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3426 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/qetgraphicsitem/masterelement.h

@@ -21,7 +21,6 @@
 #include "customelement.h"
 
 class CrossRefItem;
-class CommentItem;
 
 /**
  * @brief The MasterElement class
@@ -47,9 +46,11 @@ class MasterElement : public CustomElement
 	public slots:
 		void updateLabel();
 
+	private:
+		bool aboutDeleteXref ();
+
 	private:
 		CrossRefItem *cri_;
-		CommentItem *m_ci;
 };
 
 #endif // MASTERELEMENT_H