End project gating for retiring Searchlight project

Searchlight is going to be retired in Wallaby cycle[1],
as first step this commit end the project gating for
all the deliverables under Searchlight project.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-November/018637.html

Change-Id: I090095b052f363a4f6e1f4f0fedea87e959fa69a

zuul.d/projects.yaml

@@ -5066,7 +5066,7 @@
     name: openstack/python-searchlightclient
     templates:
       - official-openstack-repo-jobs
-      - publish-to-pypi
+      - noop-jobs
 
 - project:
     name: openstack/python-senlinclient
@@ -5408,21 +5408,19 @@
     name: openstack/searchlight
     templates:
       - official-openstack-repo-jobs
-      - translation-jobs-master-only
-      - api-ref-jobs
-      - publish-to-pypi
+      - noop-jobs
 
 - project:
     name: openstack/searchlight-specs
     templates:
       - official-openstack-repo-jobs
+      - noop-jobs
 
 - project:
     name: openstack/searchlight-ui
     templates:
       - official-openstack-repo-jobs
-      - translation-jobs-master-stable
-      - publish-to-pypi
+      - noop-jobs
 
 - project:
     name: openstack/security-analysis