Clean up Nova API prereq
Clean up Nova API prereq

Bug 980966

Change-Id: If5bbcc094b54a2de96151d69653e57e0e540d6de

bq-xiao/devstack,BSJAIN92/OpenStack,kplus/devstack-moonshot,yamt/devstack,olivierlemasle/devstack,samgoon/devstack,atulpatil301/devstack,nawawi/openstack,eshnil2000/devstack,avvocatodemarchis/devstack,pacinete/devstack,deepakselvaraj/devstack,innodee/openstackk,prithivm/branch01,williamthegrey/devstack,sc68cal/devstack,richliu/devstack,sequenceiq/devstack,upadhyay-prashant/devstack,herrsechs/devstack,noironetworks/devstack,bljgaurav/openstack-test,liuquansheng47/devstack,Mahito/devstack,CloudServer/devstack,upadhyay-prashant/devstack,avvocatodemarchis/devstack,j4/devstack,neerja28/Devstack_GlusterFS,sc68cal/devstack,jamielennox/devstack,BSJAIN92/OpenStack,eharney/devstack,inkerra/devstack,openstack-dev/devstack,mssumanth/devstack,shootstar/devstacktest,olivierlemasle/devstack,sequenceiq/devstack,varunarya10/devstack,pombredanne/devstack,vsham20/devstack,ozamiatin/devstack,samgoon/devstack,mmasaki/devstack,thomasem/devstack,herrsechs/devstack,ozamiatin/devstack,bq-xiao/devstack,LoHChina/devstack,costingalan/devstack,andrewrothstein/devstack,openstack-dev/devstack,group-policy/devstack,JioCloud/devstack,NaokiMiyata/devstack,sstrato/devstack,vishnugonela/devstack,costingalan/devstack,rushiagr/devstack,mmasaki/devstack,TwinkleChawla/devstack,prithivm/branch01,mssumanth/devstack,LoHChina/devstack,tianweizhang/devstack,andrewrothstein/devstack,thomasem/devstack,tianweizhang/devstack,bigswitch/devstack,pczerkas/devstack,Yuriy-Leonov/devstack,nawawi/openstack,parul24/devstack,vishnugonela/devstack,HPCHub/devstack,j4/devstack,rushiagr/devstack,flavio-fernandes/devstack,CiscoSystems/devstack,dtroyer/devstack,dirkmueller/devstack,wenhuizhang/devstack,pombredanne/devstack,promptworks/devstack,wenhuizhang/devstack,armando-migliaccio/devstack,pczerkas/devstack,dirkmueller/devstack,vsham20/devstack,affo/devstack,flavio-fernandes/devstack,bswartz/devstack,Juniper/devstack,TwinkleChawla/devstack,CloudServer/devstack,nuxeh/devstack,srics/devstack,neerja28/Devstack_GlusterFS,mc2014/devstack,dtroyer/devstack,HPCHub/devstack,NaokiMiyata/devstack,liuquansheng47/devstack,nuxeh/devstack,affo/devstack,atulpatil301/devstack,varunarya10/devstack,eharney/devstack,mc2014/devstack,noironetworks/devstack,Mahito/devstack,bswartz/devstack,richliu/devstack,Millnert/contrail-devstack,promptworks/devstack,bljgaurav/openstack-test,virtualopensystems/devstack,group-policy/devstack,parul24/devstack,pacinete/devstack,kplus/devstack-moonshot,bigswitch/devstack