Drop all Rocky jobs from both check and gate queues

It's temporary workaround until drop py27 support drama will be
finally gone. We need to unblock neutron-tempest-plugin gate to
merge patches related to newer branches.

Change-Id: I8e126d986918fd807edb09ed5c84cf225d58bf7f
diff --git a/.zuul.yaml b/.zuul.yaml
index 92d891a..7a3c106 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1255,7 +1255,9 @@
     templates:
       - build-openstack-docs-pti
       - neutron-tempest-plugin-jobs
-      - neutron-tempest-plugin-jobs-rocky
+      # TODO(slaweq): bring rocky jobs back when dropping py27
+      # drama will be finally over
+      # - neutron-tempest-plugin-jobs-rocky
       - neutron-tempest-plugin-jobs-stein
       - neutron-tempest-plugin-jobs-train
       - check-requirements