Comment 2 for bug 1551542

Reviewed: https://review.openstack.org/286384
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=cd7be292a8d1fb4ce913c4e7fbfc55fda033ffbe
Submitter: Jenkins
Branch: master

commit cd7be292a8d1fb4ce913c4e7fbfc55fda033ffbe
Author: Brandon Logan <email address hidden>
Date: Mon Feb 29 23:11:18 2016 -0600

    Check if plugin supports starting rpc listeners

    When neutron starts an rpc worker, it checks if the plugin has the method
    "start_rpc_listeners". Since most plugins inherit from a base class, and
    that base class implements the start_rpc_listeners method and raises
    NotImplementedError, the rpc worker will attempt to call that method.
    It should just catch the NotImplementedError and continue on.

    Change-Id: Ie1830b6140acffffd0f283a0d8eefa52067f7650
    Closes-Bug: 1551542