Updated openstack/openstack
Project: openstack/nova  a74257db12699d5acaad259cb9700899b93d0734

Do not fail cell's instance deletion, if it's missing info_cache

Currently the methods in cell messaging are trying to refresh the
instance. However, in some corner cases info_cache is not being
created for instances in ERROR state. This makes the delete
operation, of such instances, to fail, while it should not.

Handling the InstanceInfoCacheNotFound exception and not
re-raising it, for delete operations.

Closes-Bug: #1316373
Change-Id: I33c33e3ac1180e8293d950d60fb126e325a2c0cf