Revert "infra/3nodes: change steps and try to reduce deployment time"
Revert "infra/3nodes: change steps and try to reduce deployment time"

This reverts commit d86785c8b70e3b04630e79df539cb0c5b4321f99.

dsavineau/openstack-yaml-infra,redhat-cip/openstack-yaml-infra,enovance/openstack-yaml-infra