Remove explicit depend on distribute.
Remove explicit depend on distribute.

Change-Id: Ied50e67d1f32dc68e326ae58d21c76859d250496

redhat-openstack/trove,zhujzhuo/openstack-trove,citrix-openstack/build-trove,changsimon/trove,redhat-openstack/trove,citrix-openstack/build-trove,citrix-openstack-build/trove,denismakogon/trove-guestagent,cp16net/trove,fabian4/trove,citrix-openstack-build/trove,fabian4/trove,openstack/trove,citrix-openstack/build-trove,changsimon/trove,zhujzhuo/openstack-trove,cp16net/trove,denismakogon/trove-guestagent,fabian4/trove,mmasaki/trove,openstack/trove,mmasaki/trove,citrix-openstack-build/trove,redhat-openstack/trove,zhujzhuo/openstack-trove,hplustree/trove,cp16net/trove,hplustree/trove,changsimon/trove,zhangg/trove,mmasaki/trove,zhangg/trove