*: Remove route_map_object_t from the system

*: Remove route_map_object_t from the system

The route_map_object_t was being used to track what protocol we were
being called against.  But each protocol was only ever calling itself.
So we had a variable that was only ever being passed in from route_map_apply
that had to be carried against and everyone was testing if that variable
was for their own stack.

Clean up this route_map_object_t from the entire system.  We should
speed some stuff up.  Yes I know not a bunch but this will add up.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>