Comment 4 for bug 1387662

Reviewed: https://review.openstack.org/584619
Committed: https://git.openstack.org/cgit/openstack/designate/commit/?id=116b202d1815b1e0fdcf6a2c7e940b85bcedda06
Submitter: Zuul
Branch: master

commit 116b202d1815b1e0fdcf6a2c7e940b85bcedda06
Author: Erik Olof Gunnar Andersson <email address hidden>
Date: Sat Jul 21 23:17:09 2018 -0700

    Removed deprecated managed option in notification handler

    The managed option has been deprecated for 3 years now, and is
    risky in general as it can cause custom sink handlers to delete
    all records in a zone by mistake.

    This also allows us to clean the code path up a bit.

    Related-Bug: #1387662
    Change-Id: Id6174eb7df0c7bc9d138e74f72b6931a025ec818