Turn off rp association refresh in nova-next
Turn off rp association refresh in nova-next

Set [compute]resource_provider_association_refresh=0 to turn off all
periodic refreshing of the provider cache in the report client.

Note that this probably will have zero effect in the nova-next job
other than making sure that that setting doesn't blow up the world.
Because the job is always doing something, there's never a lull long
enough for the refresh timers to expire anyway, so no periodic
refreshing was happening even before this change.

Change-Id: I072b3fa4847db14e5a3f03c775a377e3514224f1

mahak/nova,klmitch/nova,klmitch/nova,openstack/nova,klmitch/nova,rahulunair/nova,rahulunair/nova,klmitch/nova,openstack/nova,mahak/nova,rahulunair/nova,openstack/nova,mahak/nova