partially revert commit 42a9afdc43cc.. of 06-12 not allowing more updates to be enqueued on deleted objects. Keep the catch up on deenqueue, so preserving the race condition safe guard. Let Scene sendkillObject work even if object is flaged as deleted. Still not clear how this are related to mantis 7858 or even less to 7990.

 partially revert commit 42a9afdc43cc.. of 06-12 not allowing more updates to be enqueued on deleted objects. Keep the catch up on deenqueue, so preserving the race condition safe guard. Let Scene sendkillObject work even if object is flaged as deleted. Still not clear how this are related to mantis 7858 or even less to 7990.