Remove strange cluster-local label from unit test (#9724)
Remove strange cluster-local label from unit test (#9724)

* Remove unnecessary cluster-local label from unit test

Current `public becomes cluster local` test uses strange Ingress
which is:

- The ingress has public visibility (default visibility).
- The ingress has clusster-local label for visibility label.

To fix it, this patch drops the cluster local label.

* Add back k8s service's cluster-local label
knative/serving,knative/serving