Don't keep track of configured RFVS instances
Don't keep track of configured RFVS instances

We have previously been keeping track of RFVS instances that have been
configured, but this was not used anywhere. Furthermore, when RFVS
instances disconnected from RouteFlow, they would still be considered
"configured" even if they have since lost all of their state.

This patch removes the RFServer.configured_rfvs[] list. This makes
RouteFlow more resilient to temporary RFVS outages, and simplifies the
code.

Signed-off-by: Joe Stringer <16a9a54ddf4259952e3c118c763138e83693d7fd@wand.net.nz>

rsanger/RouteFlow,arazmj/RouteFlow,rsanger/RouteFlow,arazmj/RouteFlow,c3m3gyanesh/RouteFlow-OpenConfig,raphaelvrosa/RouteFlow,arazmj/RouteFlow,arazmj/RouteFlow,arazmj/RouteFlow,srijanmishra/RouteFlow,c3m3gyanesh/RouteFlow-OpenConfig,rsanger/RouteFlow,rsanger/RouteFlow,srijanmishra/RouteFlow,arazmj/RouteFlow,raphaelvrosa/RouteFlow,srijanmishra/RouteFlow,routeflow/RouteFlow,c3m3gyanesh/RouteFlow-OpenConfig,raphaelvrosa/RouteFlow,c3m3gyanesh/RouteFlow-OpenConfig,routeflow/RouteFlow,routeflow/RouteFlow,c3m3gyanesh/RouteFlow-OpenConfig,srijanmishra/RouteFlow,routeflow/RouteFlow,raphaelvrosa/RouteFlow,rsanger/RouteFlow,ralph-mikera/RouteFlow-1,c3m3gyanesh/RouteFlow-OpenConfig,ralph-mikera/RouteFlow-1,rsanger/RouteFlow,raphaelvrosa/RouteFlow,routeflow/RouteFlow,ralph-mikera/RouteFlow-1,ralph-mikera/RouteFlow-1,ralph-mikera/RouteFlow-1,raphaelvrosa/RouteFlow,srijanmishra/RouteFlow,ralph-mikera/RouteFlow-1