Updated openstack/openstack
Project: openstack/nova  94aedacfd2fb103eb6b432b7e8993f1a9a095ec7

Remove havana compat from nova.cert.rpcapi

Since we only support upgrading from N-1 to N, there's no need to keep
around this older upgrade related code.

Change-Id: Ie13f98da84f3d631efea2670fbc926b69b405284