Comment 11 for bug 2019217

Reviewed: https://review.opendev.org/c/openstack/neutron/+/909305
Committed: https://opendev.org/openstack/neutron/commit/fa3223bb9d76c6f5ba1a12dd5a17cec6852be7df
Submitter: "Zuul (22348)"
Branch: master

commit fa3223bb9d76c6f5ba1a12dd5a17cec6852be7df
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Fri Feb 16 19:24:28 2024 +0000

    [OVN] Remove OVN_GATEWAY_INVALID_CHASSIS artifact

    This artifact is no longer used in the "Logical_Router" registers (in
    the "options" field) to mark this "Logical_Router" as unhosted. A
    "Logical_Router" is considered as unhosted if the gateway
    "Logical_Router_Ports" have no "chassis" set.

    This artifact is also used to create a "Gateway_Chassis" register
    pointing to a inexisting invalid chassis called
    "neutron-ovn-invalid-chassis". Any "Logical_Router_Port" not bound
    to a chassis will have no value in "gateway_chassis" (NOTE1).

    NOTE1: this is valid now with the current two OVN L3 schedulers that
    use "gateway_chassis" to schedule the "Logical_Router_Port" of a
    router. In a future, we can consider using "ha_chassis_group" for
    scheduling.

    Partial-Bug: #2052821
    Related-Bug: #2019217
    Change-Id: I12717936fe2bc188545309bacb8a260981f14c88