TripleO used to uninstall services if the resources were set to None. It
was not intentional and TripleO no longer does that. This patch manually
removes dhcp, l3, metadata and ovs agents from controller and compute
nodes, including its systemd service files.
Signed-off-by: Jakub Libosvar <firstname.lastname@example.org>
(cherry picked from commit
(cherry picked manually from