Clean up removed services from devstack options

The following services were removed some time ago.
 - nova-objectstore
 - nova-consoleauth
 - glance-registry

Change-Id: Ida5b570eae34243a82f1bebe48b563f8076e83b0

doc/source/contributor/development-environment-devstack.rst

@@ -209,7 +209,7 @@ your testing::
 Optionally, you can deploy with Manila, Nova, Neutron, Glance and Tempest::
 
     ENABLED_SERVICES=key,mysql,rabbit,tempest,g-api
-    ENABLED_SERVICES+=n-api,n-cpu,n-cond,n-sch,n-crt,n-cauth,n-obj,placement-api,placement-client
+    ENABLED_SERVICES+=n-api,n-cpu,n-cond,n-sch,n-crt,placement-api,placement-client
     ENABLED_SERVICES+=q-svc,q-dhcp,q-meta,q-l3,q-agt
     ENABLED_SERVICES+=tempest
 

zuul.d/grenade-jobs.yaml

@@ -53,14 +53,11 @@
         # These services can be turned off, if not
         # for: https://launchpad.net/bugs/1887835
         # g-api: false
-        # g-reg: false
         # n-api: false
         # n-api-meta: false
-        # n-cauth: false
         # n-cond: false
         # n-cpu: false
         # n-novnc: false
-        # n-obj: false
         # n-sch: false
         # placement-api: false
         # q-agt: false