Revert "Generate ovn-chassis-mac-mappings on ovn-controller group"

This reverts commit 8bf8656d.

Reason for revert: Setting ovn-chassis-mac-mappings on network nodes 
is causing mac flooding [1] [2] for traffic between external ports, 
and very slow troughput in consequence.
OVN HA Chassis priorities between gateways should probably be managed
by Neutron [3]

[1] https://mail.openvswitch.org/pipermail/ovs-discuss/2020-September/050691.html
[2] https://mail.openvswitch.org/pipermail/ovs-discuss/2022-May/051837.html
[3] https://mail.openvswitch.org/pipermail/ovs-discuss/2022-October/052068.html

Change-Id: Ia3b279d7e2c08464fda1a5dc41518296f559e93f

ansible/roles/ovn/tasks/bootstrap.yml

@@ -34,6 +34,6 @@
     - { name: ovn-remote-probe-interval, value: "{{ ovn_remote_probe_interval }}" }
     - { name: ovn-openflow-probe-interval, value: "{{ ovn_openflow_probe_interval }}" }
     - { name: ovn-bridge-mappings, value: "{{ ovn_mappings }}", state: "{{ 'present' if (inventory_hostname in groups['ovn-controller-network'] or computes_need_external_bridge | bool) else 'absent' }}" }
-    - { name: ovn-chassis-mac-mappings, value: "{{ ovn_macs }}", state: "{{ 'present' if inventory_hostname in groups['ovn-controller'] else 'absent' }}" }
+    - { name: ovn-chassis-mac-mappings, value: "{{ ovn_macs }}", state: "{{ 'present' if inventory_hostname in groups['ovn-controller-compute'] else 'absent' }}" }
     - { name: ovn-cms-options, value: "{{ ovn_cms_opts }}", state: "{{ 'present' if ovn_cms_opts != '' else 'absent' }}" }
   when: inventory_hostname in groups.get('ovn-controller', [])

releasenotes/notes/bug-1995078-2671a868c4fd27d3.yaml

----
-fixes:
-  - |
-    Fixes ``ovn-chassis-mac-mappings`` missing on network nodes.
-    Previously ``ovn-chassis-mac-mappings`` has been added only to
-    ``ovn-controller-compute`` group. However external ports are being
-    scheduled on network nodes. Adding ``ovn-chassis-mac-mappings``
-    on whole ``ovn-controller`` group fixes the bug.
-    `LP#1995078 <https://launchpad.net/bugs/1995078>`__