Remove unused compute_service from images controller
Remove unused compute_service from images controller

Seems to be unused since v1.0 was removed; it used to be needed for
snapshot support.

Change-Id: I799ea4b188e396548792006e5a40dfab96d37957

cyx1231st/nova,qwefi/nova,jeffrey4l/nova,whitepages/nova,phenoxim/nova,tianweizhang/nova,rrader/nova-docker-plugin,double12gzh/nova,CEG-FYP-OpenStack/scheduler,cloudbau/nova,Triv90/Nova,plumgrid/plumgrid-nova,sridevikoushik31/nova,tanglei528/nova,tealover/nova,dawnpower/nova,yrobla/nova,bclau/nova,silenceli/nova,barnsnake351/nova,NoBodyCam/TftpPxeBootBareMetal,dstroppa/openstack-smartos-nova-grizzly,blueboxgroup/nova,akash1808/nova,sacharya/nova,dstroppa/openstack-smartos-nova-grizzly,hanlind/nova,JianyuWang/nova,DirectXMan12/nova-hacking,nikesh-mahalka/nova,mahak/nova,usc-isi/nova,leilihh/nova,phenoxim/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,jeffrey4l/nova,badock/nova,dawnpower/nova,fnordahl/nova,petrutlucian94/nova,nikesh-mahalka/nova,vmturbo/nova,zzicewind/nova,berrange/nova,eharney/nova,devoid/nova,akash1808/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,TieWei/nova,fajoy/nova,dims/nova,devendermishrajio/nova_test_latest,gspilio/nova,gspilio/nova,tudorvio/nova,cloudbase/nova-virtualbox,belmiromoreira/nova,dims/nova,eonpatapon/nova,alexandrucoman/vbox-nova-driver,tangfeixiong/nova,rahulunair/nova,luogangyi/bcec-nova,eharney/nova,gooddata/openstack-nova,whitepages/nova,gooddata/openstack-nova,russellb/nova,leilihh/nova,alvarolopez/nova,affo/nova,NewpTone/stacklab-nova,MountainWei/nova,saleemjaveds/https-github.com-openstack-nova,imsplitbit/nova,spring-week-topos/nova-week,savi-dev/nova,Yuriy-Leonov/nova,LoHChina/nova,berrange/nova,SUSE-Cloud/nova,CiscoSystems/nova,openstack/nova,openstack/nova,DirectXMan12/nova-hacking,rahulunair/nova,viggates/nova,LoHChina/nova,DirectXMan12/nova-hacking,ewindisch/nova,mikalstill/nova,rahulunair/nova,Juniper/nova,akash1808/nova_test_latest,blueboxgroup/nova,jianghuaw/nova,paulmathews/nova,belmiromoreira/nova,fajoy/nova,takeshineshiro/nova,adelina-t/nova,maoy/zknova,JioCloud/nova,klmitch/nova,akash1808/nova_test_latest,redhat-openstack/nova,Stavitsky/nova,BeyondTheClouds/nova,tanglei528/nova,eneabio/nova,mgagne/nova,JioCloud/nova_test_latest,zhimin711/nova,raildo/nova,Yusuke1987/openstack_template,tealover/nova,shootstar/novatest,Metaswitch/calico-nova,barnsnake351/nova,zzicewind/nova,spring-week-topos/nova-week,BeyondTheClouds/nova,watonyweng/nova,cyx1231st/nova,orbitfp7/nova,takeshineshiro/nova,yrobla/nova,zaina/nova,maelnor/nova,joker946/nova,plumgrid/plumgrid-nova,mahak/nova,josephsuh/extra-specs,devoid/nova,JianyuWang/nova,zhimin711/nova,bgxavier/nova,russellb/nova,edulramirez/nova,scripnichenko/nova,maoy/zknova,petrutlucian94/nova_dev,vmturbo/nova,rrader/nova-docker-plugin,mikalstill/nova,iuliat/nova,imsplitbit/nova,gspilio/nova,watonyweng/nova,Yusuke1987/openstack_template,Stavitsky/nova,vmturbo/nova,alvarolopez/nova,raildo/nova,virtualopensystems/nova,usc-isi/nova,virtualopensystems/nova,houshengbo/nova_vmware_compute_driver,jianghuaw/nova,rajalokan/nova,sridevikoushik31/openstack,yosshy/nova,shahar-stratoscale/nova,CiscoSystems/nova,Triv90/Nova,Yuriy-Leonov/nova,NoBodyCam/TftpPxeBootBareMetal,leilihh/novaha,devendermishrajio/nova,alaski/nova,cloudbau/nova,felixma/nova,mgagne/nova,CloudServer/nova,rickerc/nova_audit,OpenAcademy-OpenStack/nova-scheduler,redhat-openstack/nova,angdraug/nova,sebrandon1/nova,maheshp/novatest,NeCTAR-RC/nova,bgxavier/nova,cloudbase/nova,j-carpentier/nova,mikalstill/nova,CCI-MOC/nova,edulramirez/nova,mandeepdhami/nova,TwinkleChawla/nova,shail2810/nova,eayunstack/nova,double12gzh/nova,rajalokan/nova,ntt-sic/nova,yosshy/nova,aristanetworks/arista-ovs-nova,cernops/nova,rajalokan/nova,iuliat/nova,Triv90/Nova,yatinkumbhare/openstack-nova,psiwczak/openstack,SUSE-Cloud/nova,cernops/nova,ted-gould/nova,shootstar/novatest,JioCloud/nova,mahak/nova,noironetworks/nova,alaski/nova,devendermishrajio/nova,tianweizhang/nova,savi-dev/nova,yatinkumbhare/openstack-nova,eneabio/nova,j-carpentier/nova,petrutlucian94/nova,sebrandon1/nova,maheshp/novatest,eneabio/nova,isyippee/nova,Juniper/nova,sacharya/nova,vmturbo/nova,sebrandon1/nova,NeCTAR-RC/nova,josephsuh/extra-specs,shail2810/nova,ruslanloman/nova,isyippee/nova,Tehsmash/nova,felixma/nova,sridevikoushik31/nova,aristanetworks/arista-ovs-nova,joker946/nova,MountainWei/nova,paulmathews/nova,vladikr/nova_drafts,sileht/deb-openstack-nova,mmnelemane/nova,tangfeixiong/nova,sileht/deb-openstack-nova,apporc/nova,cernops/nova,varunarya10/nova_test_latest,fajoy/nova,NoBodyCam/TftpPxeBootBareMetal,alexandrucoman/vbox-nova-driver,ntt-sic/nova,tudorvio/nova,maheshp/novatest,russellb/nova,houshengbo/nova_vmware_compute_driver,shahar-stratoscale/nova,ruslanloman/nova,mmnelemane/nova,viggates/nova,zaina/nova,hanlind/nova,paulmathews/nova,thomasem/nova,apporc/nova,klmitch/nova,TieWei/nova,varunarya10/nova_test_latest,gooddata/openstack-nova,kimjaejoong/nova,ted-gould/nova,psiwczak/openstack,NewpTone/stacklab-nova,jianghuaw/nova,usc-isi/nova,rickerc/nova_audit,bclau/nova,rajalokan/nova,orbitfp7/nova,OpenAcademy-OpenStack/nova-scheduler,adelina-t/nova,Juniper/nova,maoy/zknova,bigswitch/nova,TwinkleChawla/nova,qwefi/nova,sridevikoushik31/nova,devendermishrajio/nova_test_latest,openstack/nova,affo/nova,saleemjaveds/https-github.com-openstack-nova,leilihh/novaha,sileht/deb-openstack-nova,thomasem/nova,citrix-openstack-build/nova,JioCloud/nova_test_latest,badock/nova,usc-isi/extra-specs,sridevikoushik31/openstack,Francis-Liu/animated-broccoli,silenceli/nova,maelnor/nova,Francis-Liu/animated-broccoli,Metaswitch/calico-nova,aristanetworks/arista-ovs-nova,cloudbase/nova,dstroppa/openstack-smartos-nova-grizzly,houshengbo/nova_vmware_compute_driver,ewindisch/nova,josephsuh/extra-specs,noironetworks/nova,BeyondTheClouds/nova,NewpTone/stacklab-nova,usc-isi/extra-specs,Juniper/nova,eayunstack/nova,vladikr/nova_drafts,klmitch/nova,psiwczak/openstack,angdraug/nova,kimjaejoong/nova,luogangyi/bcec-nova,projectcalico/calico-nova,savi-dev/nova,usc-isi/extra-specs,sridevikoushik31/openstack,cloudbase/nova-virtualbox,jianghuaw/nova,eonpatapon/nova,CloudServer/nova,Tehsmash/nova,bigswitch/nova,petrutlucian94/nova_dev,hanlind/nova,cloudbase/nova,CCI-MOC/nova,gooddata/openstack-nova,yrobla/nova,citrix-openstack-build/nova,projectcalico/calico-nova,sridevikoushik31/nova,klmitch/nova,mandeepdhami/nova,fnordahl/nova,CEG-FYP-OpenStack/scheduler,scripnichenko/nova