Updated openstack/openstack
Project: openstack/nova  9bc59c02d5d4fdf2237760ba4a80bc64e68fb179

Revert "libvirt: support live migrate of instances with conf drives"

This reverts commit ecce888c469c62374a3cc43e3cede11d8aa1e799.

Using the image cache is the wrong way to move an image into the same
storage as other instance disks. We should just call into the relevant
backend store directly.

Change-Id: Id867b89d959c26d067cb06b52a496e2b98573289