Comment 24 for bug 1645979

Reviewed: https://review.openstack.org/459443
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=00773520740caa8f57600399db1717dca5b2abeb
Submitter: Jenkins
Branch: stable/newton

commit 00773520740caa8f57600399db1717dca5b2abeb
Author: Major Hayden <email address hidden>
Date: Tue Apr 25 08:38:58 2017 -0500

    Dynamically group Neutron OVS DVR to compute

    Revert I3aaf8ced1ac406069f2d6e3b52b8d59eddda7eac to fix a bug where
    deployments not using OVS+DVR contain unnecessary group mappings
    that are filtered out within the Neutron role. Instead, we stop
    adding these services to the compute host groups by default, and
    conditionally add them when DVR is selected as the Neutron plugin.

    This is a manual cherry pick from the stable/ocata commit
    4ba6bc315ed9c94b5088b4efdd2734f5c9476196.

    Related to RPC-O PR: rcbops/rpc-openstack#2187
    Closes-Bug: #1645979
    Change-Id: I543d1b5d3d50b6e7936605f436805d2f0ad9b3e9