Comment 3 for bug 2036766

Reviewed: https://review.opendev.org/c/openstack/charm-nova-cloud-controller/+/895840
Committed: https://opendev.org/openstack/charm-nova-cloud-controller/commit/5cf66c87c797e4f7549bc7cd9f5d57c624d30d00
Submitter: "Zuul (22348)"
Branch: master

commit 5cf66c87c797e4f7549bc7cd9f5d57c624d30d00
Author: Corey Bryant <email address hidden>
Date: Tue Sep 19 14:00:33 2023 -0400

    Drop AvailabilityZoneFilter inline with upstream removal

    The was removed from upstream nova in the 2023.2 cycle
    via commit 5edd805fe2395f35ecdfe5b589a51dc00565852f.

    The nova release note states:

    The ``AvailabilityZoneFilter`` was deprecated for removal
    in 24.0.0 (Xena) and has now been removed.
    The functionality of the``AvailabilityZoneFilter`` has been
    replaced by the``map_az_to_placement_aggregate`` pre-filter.
    The pre-filter was introduced in 18.0.0 (Rocky) and enabled
    by default in 24.0.0 (Xena). This pre-filter is now always
    enabled and the ``[scheduler] query_placement_for_availability_zone``
    config option has been removed.

    This change also syncs the charm-helpers change from:
    https://github.com/juju/charm-helpers/pull/850

    Closes-Bug: #2037751
    Closes-Bug: #2036766
    Change-Id: I315900a7e32ec66b27fa69961e9b7dcb9fa1f949