and remove all traces of boost/checked_delete.hpp

Change-Id: I4486d0e07a7197d75f8739c8c6d79670163eaab2
Reviewed-on: https://gerrit.libreoffice.org/33182Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jochen Nitschke <j.nitschke+logerrit@ok.de>