Retire the devstack-plugin-zmq project

This plugin was used by the oslo.messaging project to test the
development of a message driver based on the ZeroMQ library.

The jobs using this plugin were non-voting and non-gating.

Development of this driver was dropped in Rocky and is not
supported.

Depends-On: https://review.opendev.org/#/c/748700
Change-Id: I3205cb8332fdd15d55c34f74b6cb727b7d9feb9c

gerrit/projects.yaml

@@ -2883,8 +2883,8 @@
   description: DevStack plugin to configure Pika RabbitMQ driver.
   acl-config: /home/gerrit2/acls/openstack/oslo.messaging.config
 - project: openstack/devstack-plugin-zmq
-  description: DevStack plugin to configure ZMQ.
-  acl-config: /home/gerrit2/acls/openstack/oslo.messaging.config
+  description: RETIRED, DevStack plugin to configure ZMQ.
+  acl-config: /home/gerrit2/acls/openstack/retired.config
 - project: openstack/devstack-tools
   description: DevStack supporting tools in python
   acl-config: /home/gerrit2/acls/openstack/devstack.config

gerritbot/channels.yaml

@@ -1060,7 +1060,6 @@ openstack-oslo:
     - openstack/devstack-plugin-amqp1
     - openstack/devstack-plugin-kafka
     - openstack/devstack-plugin-pika
-    - openstack/devstack-plugin-zmq
     - openstack/etcd3gw
     - openstack/futurist
     - openstack/openstack-doc-tools

zuul.d/projects.yaml

@@ -2421,12 +2421,6 @@
     templates:
       - official-openstack-repo-jobs
 
-- project:
-    name: openstack/devstack-plugin-zmq
-    templates:
-      - official-openstack-repo-jobs
-      - noop-jobs
-
 - project:
     name: openstack/devstack-tools
     templates:

zuul/main.yaml

@@ -447,7 +447,6 @@
           - openstack/devstack-plugin-nfs
           - openstack/devstack-plugin-open-cas
           - openstack/devstack-plugin-pika
-          - openstack/devstack-plugin-zmq
           - openstack/devstack-tools
           - openstack/devstack-vagrant
           - openstack/dib-utils