74c42829eb
This removes unnecessary zuul layout overrides. The containers
multinode and standalone/scenarios are already included via the
wired-up templates. Keeps only the undercloud-minion which is not
in the tripleo-multinode-container-minimal-pipeline [1] but updates
the consumer job vars. Part of tripleo-ci optimisation at [2].
[1] 67a58a4378/zuul.d/multinode-jobs.yaml (L71-L85)
[2] https://review.opendev.org/q/topic:tripleo-ci-reduce
Change-Id: I7c4ba85cbc1525079a94cb76aa9576b24f1d0fbb