ovn: Fix minor update failure with OVN db pacemaker HA resource

If an OVN deployment doesn't have this fix [1] in the ovn-northd docker image,
the if the image is not tagged with pcmklatest (see [2]), then during
step 5 of minor update of controllers (on the bootstrap node) the
'pacemaker_resource' ansible module fails for the "state: disable" task.

It is observed in my testing that 'pacemaker_resource - state: disable' ansible
tasks fails if the resource is already in stopped state. It also fails
for the task 'pacemaker_resource - state: enable' if the resource is already
enabled. This probably needs a fix in 'pacemaker_resource' ansible module.

To fix the stack update failure issue with OVN, this patch removes these
tasks - disable and enable of ovn-dbs-bundle before and after running the
command "pcs resource bundle update ovn-dbs-bundle container
image={{ovn_dbs_docker_image_latest}}". Since updating the bundle triggers
the resource restart, probably we don't need to explicitly disable and
enable the resource.

[1] - 9b46d3f609 (diff-9c26550f1dff9ce66cf9c3c510b47864)
[2] - See commit with change id - Idbda3bedff57376b74269ab3470d2324b804ffd4

Change-Id: I3f47fd019ca6b2ccb378c97751a11cb12ffed521
Closes-bug: #1784863

docker/services/pacemaker/ovn-dbs.yaml

@@ -269,24 +269,8 @@ outputs:
               shell: "pcs resource show ovn-dbs-bundle | grep image | awk '{ split($2, image, \"=\"); print image[2] }'"
               register: ovn_dbs_current_image
             - block: &ovn_dbs_update_bundle_with_new_image
-                - name: Disable the ovn-dbs-bundle resource before updating the image
-                  pacemaker_resource:
-                    resource: ovn-dbs-bundle
-                    state: disable
-                    wait_for_resource: true
-                  register: output
-                  retries: 5
-                  until: output.rc == 0
                 - name: Update the ovn-dbs-bundle to use the new container image name
                   command: "pcs resource bundle update ovn-dbs-bundle container image={{ovn_dbs_docker_image_latest}}"
-                - name: Enable the ovn-dbs-bundle resource
-                  pacemaker_resource:
-                    resource: ovn-dbs-bundle
-                    state: enable
-                    wait_for_resource: true
-                  register: output
-                  retries: 5
-                  until: output.rc == 0
               when:
                 - ovn_dbs_current_image.stdout != ovn_dbs_docker_image_latest
       upgrade_tasks: