ceph: Don't fail if the container does not exists
ceph: Don't fail if the container does not exists

We previously remove this object with aio_remove so
error was ignored. We have to catch it now.

Change-Id: Ie036dc157e84a5665808b3b37e1c676b533d3411

sileht/gnocchi,leandroreox/gnocchi,sileht/gnocchi,leandroreox/gnocchi,gnocchixyz/gnocchi,gnocchixyz/gnocchi