Switch off glance->swift in rally+py35 tests
Switch off glance->swift in rally+py35 tests

Swift does not currently work on py35 and is a work
in progress. So for now, we should switch off the
glance upload to swift for images.

Change-Id: Idfc15ecbf5c109537d0715be216c84e6c369efd1

openstack-infra/project-config,openstack-infra/project-config