The env-variables.sh get-values-overrides.sh
and wait-for-pods.sh are not needed any more
since they are now a part of openstack-helm-plugin.
https: //review.opendev.org/c/openstack/openstack-helm-infra/+/942852
Change-Id: I6e7f78a3f90ff82b06da0115d8c73fe30b853c23