Comment 6 for bug 1783547

Reviewed: https://review.openstack.org/619500
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=bef04715baa5242988cf6e946f36bc801a089028
Submitter: Zuul
Branch: stable/queens

commit bef04715baa5242988cf6e946f36bc801a089028
Author: Cédric Jeanneret <email address hidden>
Date: Wed Jul 25 14:13:55 2018 +0200

    Remove tftp service and package upon upgrade to container

    In non-containerized over/undercloud, the tftpd service is
    supervised by xinetd.
    If we don't deactivate tftpd from xinetd, the UDP:69 port
    will still be in use, preventing the containerized tftpd
    service to start.

    Change-Id: Ibf2decaaaedda9a3b44f28786a5ab9b7415a3907
    Closes-bug: 1783547
    (cherry picked from commit 149ca6e1634de629a90026a547f301c59555725f)