Remove unused dependency: discover
Remove unused dependency: discover

Change-Id: I1f3e7056d8dd93bddd7fe9d5939d6b168363bd33

grahamhayes/designate,ramsateesh/designate,muraliselva10/designate,ramsateesh/designate,tonyli71/designate,cneill/designate-testing,muraliselva10/designate,muraliselva10/designate,grahamhayes/designate,grahamhayes/designate,openstack/designate,cneill/designate-testing,ionrock/designate,tonyli71/designate,ramsateesh/designate,cneill/designate-testing,openstack/designate,ionrock/designate,ionrock/designate,tonyli71/designate,openstack/designate