Remove the collector config from analytics services on upgrade to release >=3.0
Remove the collector config from analytics services on upgrade to
release >=3.0

o From release 3.0, analytics services no longer connect to the
local collector. All analytics services other than collector
would subscribe for the collector service with discovery server.

o Provision discovery ip address in contrail-query-engine.conf and
contrail-topology.conf

o Presently, contrail-query-engine and contrail-analytics-api services
are provisioned to connect to local collector. Remove the collector list
on upgrade to release >= 3.0

Change-Id: I3acd6002872a6f298746a17c079a2154e24d48ad
Partial-Bug: #1528770

Juniper/contrail-provisioning,Juniper/contrail-provisioning