Remove old bridge testing

We don't need to test on a bionic bridge any more, remove the old test
job.

Change-Id: I826f740b004bdc8b85977ba08f4e17e92f40a316

zuul.d/project.yaml

@@ -10,7 +10,6 @@
         - tox-linters:
             timeout: 3600
         - system-config-run-base
-        - system-config-run-base-old-bridge
         - system-config-run-base-ansible-devel:
             voting: false
         - system-config-run-borg-backup
@@ -164,7 +163,6 @@
         - tox-linters:
             timeout: 3600
         - system-config-run-base
-        - system-config-run-base-old-bridge
         - system-config-run-borg-backup
         - system-config-run-dns
         - system-config-run-eavesdrop:

zuul.d/system-config-run.yaml

@@ -88,34 +88,6 @@
       - roles/
       - testinfra/
 
-- job:
-    name: system-config-run-base-old-bridge
-    parent: system-config-run
-    description: |
-      Run the "base" playbook on each of the node types
-      currently in use on an "old" Bionic bridge
-    nodeset:
-      nodes:
-        - name: bridge.openstack.org
-          label: ubuntu-bionic
-        - name: xenial
-          label: ubuntu-xenial
-        - name: bionic
-          label: ubuntu-bionic
-        - name: focal
-          label: ubuntu-focal
-        - name: jammy
-          label: ubuntu-jammy
-      groups:
-        - name: bastion
-          nodes:
-            - bridge.openstack.org
-    files:
-      - tox.ini
-      - playbooks/
-      - roles/
-      - testinfra/
-
 - job:
     name: system-config-run-base-ansible-devel
     parent: system-config-run-base