This removes leftover inmotion clouds.yaml related configs from our
configuration management. We remove the hardcoded cert (since the old
cloud used a self signed cert) and various ansible vars used in testing.
Note we keep the ansible task to write out special cloud certs so that
we don't have to reinvent this code in the future / remember we had it
once and unrevert it, but we feed that task an empty list making it a
noop currently.
Change-Id: I2a6fdf06879023ab6ee65437a592d55a8c0eb371
4a631dd201