Remove centos-7 upgrade and update jobs

See topic branch [1] for related patches

[1] https://review.opendev.org/q/topic:tripleo-c7-update-upgrade-removal

Change-Id: I21d3ca4dca4d5d014d56372d96faad060ff38b56

zuul.d/layout.yaml

@@ -8,30 +8,5 @@
       - release-notes-jobs
     check:
       jobs:
-        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
-            voting: true
-            files:
-              - workbooks/package_update.yaml
-              - workbooks/baremetal.yaml
-              - ^container-images/.*$
-              - tripleo_common/actions/deployment.py
-              - tripleo_common/actions/container_images.py
-              - tripleo_common/image/kolla_builder.py
-              - scripts/.*$
         - openstack-tox-cover:
             voting: false
-
-    gate:
-      queue: tripleo
-      jobs:
-        - tripleo-ci-centos-7-scenario000-multinode-oooq-container-updates:
-            voting: true
-            files:
-              - workbooks/package_update.yaml
-              - workbooks/baremetal.yaml
-              - ^container-images/.*$
-              - tripleo_common/actions/deployment.py
-              - tripleo_common/actions/container_images.py
-              - tripleo_common/image/kolla_builder.py
-              - scripts/.*$
-