CBQE-0: rm conf/py-swaprebalance_dgm.conf

Change-Id: I26fc11f57c554c2c79c378473c32615cb298eb69
Reviewed-on: http://review.couchbase.org/27112
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>