Remove unused option for ceilometer.
Remove unused option for ceilometer.

This fixed the bug #1163158.

Change-Id: Ib93e5b26d1f1309edf2baa5c147337db1411eee5

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