As of stable-4.0, the only valid scenario is `lvm`.
Thus, this makes this variable useless.
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 4d35e9eeed)
On stable-4.0 branch we don't want to use dev setup but stable
release (nautilus).
Also update the container image tag to reflect this change.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>