RO-3266 Only download the OSA roles once (#2728)
RO-3266 Only download the OSA roles once (#2728)

When executing install.sh it executes bootstrap-ansible.sh from OSA,
then executes site-release.yml -> configure-release.yml which replaces
the git-downloaded roles with ansible-galaxy downloaded roles.

This makes the deployment a little more fragile as either one of these
download methods may fail, causing the install script to fail.

This patch makes bootstrap-ansible not do any role boostrapping so that
our own tooling in configure-release.yml can do it instead. Given that
we use ansible-galaxy for the RPC roles, it appears to make sense to
use the same method for OSA roles too.
hughsaunders/rpc-openstack,cloudnull/rpc-openstack,prometheanfire/rpc-openstack,hughsaunders/rpc-openstack,BjoernT/rpc-openstack,rcbops/rpc-openstack,rcbops/rpc-openstack,mancdaz/rpc-openstack,BjoernT/rpc-openstack,jacobwagner/rpc-openstack,robb-romans/rpc-openstack,cloudnull/rpc-openstack,prometheanfire/rpc-openstack,robb-romans/rpc-openstack,mancdaz/rpc-openstack,jacobwagner/rpc-openstack