fwaas_v2 extension is added in l3_agent.ini by default from stein.
However with the newly introduced neutron-api configuration parameter
enable-fwaas, the extension have to added only when it is set to true
on neutron-api charm.
neutron-api charm adds enabled-fwaas as relation data in the commit
https://review.opendev.org/c/openstack/charm-neutron-api/+/806676.
This patch removes special handling of fwaas_v2 as l3_extension_plugins
is already updated in relation data based on neutron-api enable-fwaas
configuration.
Add python3-neutron-fwaas in py3 package list only for rocky release. The
package is already part of dependency of neutron-l3-agent until Ussuri
release and the dependency will be removed from Victoria release in
package control files.
Synced charmhelpers to get related changes
https://github.com/juju/charm-helpers/pull/640
Closes-Bug: #1934129
Change-Id: I1546f45635bfd7af76001c1df4f99d219a9d8039
(cherry picked from commit d3daa09bc4)
efac9bd199