coverity#738899 unused member

Change-Id: I3f96d50709c9a6832192b97d4174b9cea07c5057
coverity#738895 unused member

Change-Id: I6bca0a36708e4e8fd3a22a23d76a89525b6d75bc
coverity#738892 Uninitialized scalar field

Change-Id: I4eecd759cf22f91a98830fc51b394ac959d6dc8a
Resolves: #i122576# Reset the docking area acceptor in the destructor

(cherry picked from commit 0e90517f3dd568cfe2be4bf8c256b94c9401d046)

Conflicts:
	framework/source/layoutmanager/layoutmanager.cxx

Change-Id: Ib053a1b474434f81608a04ca0d30dd32fe410e5a