Remove ununsed dependency: discover
Remove ununsed dependency: discover

Change-Id: I1cfc6830d98d25e749e9c42eb883677c29da11f9

scality/manila,bswartz/manila,vponomaryov/manila,redhat-openstack/manila,openstack/manila,vponomaryov/manila,openstack/manila,scality/manila,bswartz/manila,jcsp/manila,jcsp/manila,NetApp/manila,redhat-openstack/manila,NetApp/manila