Updated openstack/openstack
Project: openstack/nova  1439c038de41b10358dd5121b79e6484e11cc8b9
null
Don't explode if we fail to unplug VIFs after a failed boot

Libvirt currently attempts to unplug VIFs after destroying an
instance, which can fail if the instance was never built
properly in the first place. This patch makes it ignore errors
when trying to tear down VIFs during that cleanup. Failure
in this case would block the deletion of the instance (which
should never happen) and any real failures aren't something
we could do anything about.

Closes-bug: #1306718

Change-Id: I84a4433c3959b8f14e0259be0aa51da1654006c8