Fixes: MContainer setCentralWidget unit test.
Fixes: MContainer setCentralWidget unit test.

RevBy: TBD.

Details: The widget cannot be deleted while it's a central widget of the container.

nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch