Remove mox from nova/tests/unit/db/test_db_api.py
Remove mox from nova/tests/unit/db/test_db_api.py

Part of blueprint remove-mox-pike

Change-Id: I5d053faaf7657ad21e812221ec637b1f4aa92d84

phenoxim/nova,mahak/nova,openstack/nova,rahulunair/nova,jianghuaw/nova,Juniper/nova,gooddata/openstack-nova,vmturbo/nova,rajalokan/nova,gooddata/openstack-nova,klmitch/nova,klmitch/nova,openstack/nova,mikalstill/nova,mikalstill/nova,vmturbo/nova,klmitch/nova,jianghuaw/nova,rajalokan/nova,klmitch/nova,Juniper/nova,openstack/nova,mahak/nova,phenoxim/nova,rajalokan/nova,rahulunair/nova,mikalstill/nova,Juniper/nova,gooddata/openstack-nova,vmturbo/nova,jianghuaw/nova,rahulunair/nova,vmturbo/nova,jianghuaw/nova,mahak/nova,gooddata/openstack-nova,rajalokan/nova,Juniper/nova