Retire monasca-analytics

monasca-analytics is retired in Oct, 2020
- https://review.opendev.org/c/openstack/monasca-analytics/+/751992/

But last step of retirement which is to update the governance
was not done.
- https://docs.openstack.org/project-team-guide/repository.html#step-6-remove-repository-from-the-governance-repository

This commits finishes the retirement process for monasca-analytics

Change-Id: I1cda72f15a5642ce9f360f70f25e77cbdcc57af7

reference/legacy.yaml

@@ -490,6 +490,17 @@ MagnetoDB:
         - release:cycle-with-intermediary
         - type:library
 
+monasca:
+  partial: yes
+  irc-channel: openstack-monasca
+  service: Monitoring
+  url: https://wiki.openstack.org/wiki/Monasca
+  deliverables:
+    monasca-analytics:
+      retired-on: 2020-10-22
+      repos:
+        - openstack/monasca-analytics
+
 murano:
   partial: yes
   deliverables:

reference/projects.yaml

@@ -982,9 +982,6 @@ monasca:
     monasca-transform:
       repos:
         - openstack/monasca-transform
-    monasca-analytics:
-      repos:
-        - openstack/monasca-analytics
     monasca-grafana-datasource:
       repos:
         - openstack/monasca-grafana-datasource