Change I9ca77927046e2b2e3cee9a642d0bc566e3871515 updated the
nodepool-builder_opendev group to deploy it's config into
/etc/openstack, but updated the wrong template.
The nodepool_builder_clouds.yaml.j2 file was an old, unreferenced copy
from left-over from Id1161bca8f23129202599dba299c288a6aa29212 when we
wanted to use nodepool to manage control-plane clouds. That didn't
work out so well and I think we just missed cleaning it up with
I5e72928ec2dec37afa9c8567eff30eb6e9c04f1d.
Remove it now, and port the path changes into the correct config file.
Change-Id: I37af69b342b413df94435e59a7c16bb218183399
dd489067a9