retire coreos-image-builder

Removing coreos-image-builder as it was never
really put into use.

As such, we're moving to retire it.

Please see: https://review.opendev.org/#/c/707181/

Change-Id: I50574d142e246e3256d90c6d0aa7295655e05d43

gerrit/projects.yaml

@@ -6325,11 +6325,8 @@
 - project: x/conveyor
   description: Clone and migrate OpenStack resources
 - project: x/coreos-image-builder
-  description: A framework for building CoreOS Ramdisk
-  use-storyboard: true
-  groups:
-    - ironic
-  acl-config: /home/gerrit2/acls/openstack/ironic.config
+  description: RETIRED, A framework for building CoreOS Ramdisk
+  acl-config: /home/gerrit2/acls/openstack/retired.config
 - project: x/coupler
   description: Coupling Storage Service VM for OpenStack
 - project: x/craton

zuul.d/projects.yaml

@@ -5012,11 +5012,6 @@
       - openstack-python-jobs
       - check-requirements
 
-- project:
-    name: x/coreos-image-builder
-    templates:
-      - noop-jobs
-
 - project:
     name: x/coupler
     templates:

zuul/main.yaml

@@ -1171,7 +1171,6 @@
           - x/compass-specs
           - x/compass-web
           - x/conveyor
-          - x/coreos-image-builder
           - x/coupler
           - x/cursive
           - x/daisycloud-core