Clean up local variable usage - Swift
Clean up local variable usage - Swift

Change-Id: Id02ebdfa5cb3f6c763293876c6bb031184ebd663

varunarya10/devstack,nuxeh/devstack,openstack-dev/devstack,mc2014/devstack,Mahito/devstack,bljgaurav/openstack-test,liuquansheng47/devstack,noironetworks/devstack,varunarya10/devstack,pczerkas/devstack,mmasaki/devstack,flavio-fernandes/devstack,CloudServer/devstack,promptworks/devstack,sc68cal/devstack,BSJAIN92/OpenStack,noironetworks/devstack,TwinkleChawla/devstack,andrewrothstein/devstack,atulpatil301/devstack,vsham20/devstack,bigswitch/devstack,group-policy/devstack,olivierlemasle/devstack,parul24/devstack,flavio-fernandes/devstack,samgoon/devstack,herrsechs/devstack,costingalan/devstack,LoHChina/devstack,eshnil2000/devstack,affo/devstack,vsham20/devstack,virtualopensystems/devstack,nuxeh/devstack,bswartz/devstack,rushiagr/devstack,wenhuizhang/devstack,neerja28/Devstack_GlusterFS,mc2014/devstack,vishnugonela/devstack,nawawi/openstack,NaokiMiyata/devstack,TwinkleChawla/devstack,rushiagr/devstack,samgoon/devstack,bswartz/devstack,wenhuizhang/devstack,ozamiatin/devstack,richliu/devstack,j4/devstack,bq-xiao/devstack,j4/devstack,liuquansheng47/devstack,olivierlemasle/devstack,pacinete/devstack,atulpatil301/devstack,mssumanth/devstack,vishnugonela/devstack,costingalan/devstack,prithivm/branch01,kplus/devstack-moonshot,HPCHub/devstack,pczerkas/devstack,bq-xiao/devstack,parul24/devstack,eharney/devstack,thomasem/devstack,herrsechs/devstack,dirkmueller/devstack,Mahito/devstack,bigswitch/devstack,openstack-dev/devstack,richliu/devstack,group-policy/devstack,nawawi/openstack,andrewrothstein/devstack,avvocatodemarchis/devstack,thomasem/devstack,tianweizhang/devstack,bljgaurav/openstack-test,upadhyay-prashant/devstack,neerja28/Devstack_GlusterFS,BSJAIN92/OpenStack,pacinete/devstack,mssumanth/devstack,upadhyay-prashant/devstack,LoHChina/devstack,tianweizhang/devstack,sequenceiq/devstack,dirkmueller/devstack,affo/devstack,HPCHub/devstack,pombredanne/devstack,ozamiatin/devstack,prithivm/branch01,avvocatodemarchis/devstack,kplus/devstack-moonshot,NaokiMiyata/devstack,sc68cal/devstack,sequenceiq/devstack,promptworks/devstack,eharney/devstack,pombredanne/devstack,CloudServer/devstack,dtroyer/devstack,dtroyer/devstack,mmasaki/devstack