Remove CentOS 7 jobs

We're removing CentOS 7 test nodes from OpenDev and before we can do
that we need to clean up the supporting infrastructure for things like
wheel caching/mirroring which in turn depends on openafs packaging.
Enough time has passed since we announced the CentOS 7 nodes would be
removed that we should be good to start dropping this supporting
infrastructure. Go ahead and make that happen.

Depends-On: https://review.opendev.org/c/openstack/project-config/+/912283
Change-Id: I5c56e0f081b4a4720ca59c8d2b59621fcaaad39d

zuul.d/jobs.yaml

@@ -1292,11 +1292,6 @@
       - playbooks/openafs-rpm-package-build
       - roles/openafs-rpm-package-build
 
-- job:
-    name: openafs-rpm-package-build-centos-7-x86
-    parent: openafs-rpm-package-build
-    nodeset: centos-7
-
 - job:
     name: openafs-rpm-package-build-centos-8-stream-x86
     parent: openafs-rpm-package-build
@@ -1415,11 +1410,6 @@
     vars:
       tox_envlist: functional
 
-- job:
-    name: ansible-role-functional-centos-7
-    parent: ansible-role-functional-base
-    nodeset: centos-7
-
 - job:
     name: ansible-role-functional-ubuntu-xenial
     parent: ansible-role-functional-base
@@ -1508,23 +1498,6 @@
     vars:
       bindep_dir: "{{ zuul.projects['opendev.org/openstack/requirements'].src_dir }}"
 
-- job:
-    name: build-wheel-cache-centos-7
-    parent: build-wheel-cache-base
-    description: |
-      Build CentOS 7 wheels for OpenStack CI mirrors.
-    nodeset:
-      nodes:
-        - name: wheel-cache-centos-7-python2
-          label: centos-7
-        - name: wheel-cache-centos-7-python3
-          label: centos-7
-    host-vars:
-      wheel-cache-centos-7-python2:
-        wheel_python: python2
-      wheel-cache-centos-7-python3:
-        wheel_python: python3
-
 - job:
     name: build-wheel-cache-centos-9-stream
     parent: build-wheel-cache-base

zuul.d/project.yaml

@@ -9,7 +9,6 @@
         - project-config-grafana:
             files:
               - playbooks/grafana
-        - openafs-rpm-package-build-centos-7-x86
         - openafs-rpm-package-build-centos-8-stream-x86
         - openafs-rpm-package-build-centos-8-stream-arm64
         - openafs-rpm-package-build-centos-9-stream-x86
@@ -17,10 +16,6 @@
         - openstack-infra-extra-integration-xenial
         - openstack-infra-extra-integration-bionic
         - openstack-zuul-jobs-linters
-        - build-wheel-cache-centos-7:
-            files:
-              - playbooks/wheel-cache
-              - roles/build-wheel-cache
         - build-wheel-cache-centos-8-stream:
             files:
               - playbooks/wheel-cache
@@ -77,7 +72,6 @@
               - roles/build-wheel-cache
     gate:
       jobs:
-        - openafs-rpm-package-build-centos-7-x86
         - openafs-rpm-package-build-centos-8-stream-x86
         - openafs-rpm-package-build-centos-8-stream-arm64
         - openafs-rpm-package-build-centos-9-stream-x86