
This patch cleans up the container cache preparation in the tests due to the following patches: - https://review.openstack.org/307856 (new image build process) - https://review.openstack.org/315114 (new apt config process) - https://review.openstack.org/322188 (new resolver config process) Change-Id: I5ce69a4d9b64d955e3d7a794a078a660dd97b5f5