Do not require --bridge_interface for FlatDHCPManager (lp:844944)
Do not require --bridge_interface for FlatDHCPManager (lp:844944)

Unlike VlanManager, FlatDHCPManager actually works fine without a bridge
interface on single host deployments.
shootstar/novatest,Juniper/nova,alvarolopez/nova,watonyweng/nova,zaina/nova,sebrandon1/nova,shahar-stratoscale/nova,double12gzh/nova,vladikr/nova_drafts,DirectXMan12/nova-hacking,CiscoSystems/nova,felixma/nova,eayunstack/nova,russellb/nova,dims/nova,kimjaejoong/nova,CEG-FYP-OpenStack/scheduler,shail2810/nova,cernops/nova,yrobla/nova,rahulunair/nova,klmitch/nova,noironetworks/nova,leilihh/nova,KarimAllah/nova,cyx1231st/nova,JioCloud/nova_test_latest,paulmathews/nova,sridevikoushik31/nova,varunarya10/nova_test_latest,houshengbo/nova_vmware_compute_driver,openstack/nova,gooddata/openstack-nova,psiwczak/openstack,aristanetworks/arista-ovs-nova,sileht/deb-openstack-nova,noironetworks/nova,dawnpower/nova,scripnichenko/nova,hanlind/nova,yosshy/nova,apporc/nova,dawnpower/nova,SUSE-Cloud/nova,berrange/nova,maoy/zknova,raildo/nova,whitepages/nova,zzicewind/nova,ewindisch/nova,josephsuh/extra-specs,mikalstill/nova,CCI-MOC/nova,dstroppa/openstack-smartos-nova-grizzly,usc-isi/nova,jianghuaw/nova,klmitch/nova,SUSE-Cloud/nova,plumgrid/plumgrid-nova,sridevikoushik31/openstack,maelnor/nova,zaina/nova,rajalokan/nova,devoid/nova,raildo/nova,sridevikoushik31/nova,virtualopensystems/nova,double12gzh/nova,zhimin711/nova,gooddata/openstack-nova,DirectXMan12/nova-hacking,maoy/zknova,yrobla/nova,qwefi/nova,rajalokan/nova,shail2810/nova,BeyondTheClouds/nova,mahak/nova,Francis-Liu/animated-broccoli,angdraug/nova,jianghuaw/nova,NoBodyCam/TftpPxeBootBareMetal,mandeepdhami/nova,alexandrucoman/vbox-nova-driver,salv-orlando/MyRepo,Yusuke1987/openstack_template,yrobla/nova,fnordahl/nova,virtualopensystems/nova,dims/nova,cloudbase/nova-virtualbox,savi-dev/nova,ewindisch/nova,iuliat/nova,petrutlucian94/nova,JioCloud/nova_test_latest,zhimin711/nova,akash1808/nova_test_latest,vmturbo/nova,akash1808/nova_test_latest,TwinkleChawla/nova,usc-isi/extra-specs,jeffrey4l/nova,Yuriy-Leonov/nova,spring-week-topos/nova-week,ntt-sic/nova,tealover/nova,adelina-t/nova,leilihh/novaha,NeCTAR-RC/nova,bclau/nova,cloudbase/nova-virtualbox,nikesh-mahalka/nova,qwefi/nova,fnordahl/nova,whitepages/nova,eharney/nova,sacharya/nova,eonpatapon/nova,vladikr/nova_drafts,sebrandon1/nova,JioCloud/nova,maheshp/novatest,badock/nova,shahar-stratoscale/nova,eayunstack/nova,barnsnake351/nova,tudorvio/nova,jianghuaw/nova,usc-isi/nova,luogangyi/bcec-nova,bgxavier/nova,watonyweng/nova,gspilio/nova,viggates/nova,silenceli/nova,apporc/nova,imsplitbit/nova,russellb/nova,silenceli/nova,felixma/nova,usc-isi/nova,KarimAllah/nova,Yuriy-Leonov/nova,openstack/nova,edulramirez/nova,cloudbau/nova,Juniper/nova,plumgrid/plumgrid-nova,Francis-Liu/animated-broccoli,takeshineshiro/nova,NewpTone/stacklab-nova,akash1808/nova,leilihh/novaha,JianyuWang/nova,redhat-openstack/nova,maelnor/nova,sridevikoushik31/openstack,joker946/nova,JianyuWang/nova,Stavitsky/nova,josephsuh/extra-specs,Triv90/Nova,zzicewind/nova,mmnelemane/nova,thomasem/nova,rickerc/nova_audit,alvarolopez/nova,luogangyi/bcec-nova,varunarya10/nova_test_latest,redhat-openstack/nova,kimjaejoong/nova,rickerc/nova_audit,leilihh/nova,projectcalico/calico-nova,aristanetworks/arista-ovs-nova,barnsnake351/nova,citrix-openstack-build/nova,BeyondTheClouds/nova,rahulunair/nova,OpenAcademy-OpenStack/nova-scheduler,sebrandon1/nova,josephsuh/extra-specs,sacharya/nova,mgagne/nova,CEG-FYP-OpenStack/scheduler,cloudbau/nova,tanglei528/nova,jeffrey4l/nova,savi-dev/nova,belmiromoreira/nova,tanglei528/nova,MountainWei/nova,openstack/nova,salv-orlando/MyRepo,eneabio/nova,tudorvio/nova,psiwczak/openstack,tealover/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,alaski/nova,thomasem/nova,mahak/nova,gspilio/nova,tangfeixiong/nova,NoBodyCam/TftpPxeBootBareMetal,paulmathews/nova,mgagne/nova,fajoy/nova,NewpTone/stacklab-nova,akash1808/nova,berrange/nova,Juniper/nova,CCI-MOC/nova,usc-isi/extra-specs,ruslanloman/nova,klmitch/nova,BeyondTheClouds/nova,eneabio/nova,ruslanloman/nova,shootstar/novatest,imsplitbit/nova,NewpTone/stacklab-nova,LoHChina/nova,cloudbase/nova,vmturbo/nova,j-carpentier/nova,fajoy/nova,projectcalico/calico-nova,cernops/nova,TwinkleChawla/nova,orbitfp7/nova,fajoy/nova,OpenAcademy-OpenStack/nova-scheduler,tangfeixiong/nova,NeCTAR-RC/nova,rrader/nova-docker-plugin,aristanetworks/arista-ovs-nova,Tehsmash/nova,phenoxim/nova,KarimAllah/nova,Triv90/Nova,saleemjaveds/https-github.com-openstack-nova,maoy/zknova,ntt-sic/nova,alaski/nova,vmturbo/nova,klmitch/nova,scripnichenko/nova,hanlind/nova,tianweizhang/nova,vmturbo/nova,Juniper/nova,CloudServer/nova,Yusuke1987/openstack_template,angdraug/nova,eharney/nova,jianghuaw/nova,joker946/nova,russellb/nova,alexandrucoman/vbox-nova-driver,dstroppa/openstack-smartos-nova-grizzly,sridevikoushik31/nova,yatinkumbhare/openstack-nova,isyippee/nova,rajalokan/nova,mmnelemane/nova,isyippee/nova,devendermishrajio/nova,bclau/nova,takeshineshiro/nova,eonpatapon/nova,hanlind/nova,TieWei/nova,j-carpentier/nova,blueboxgroup/nova,JioCloud/nova,DirectXMan12/nova-hacking,petrutlucian94/nova_dev,salv-orlando/MyRepo,sridevikoushik31/nova,mandeepdhami/nova,psiwczak/openstack,orbitfp7/nova,maheshp/novatest,eneabio/nova,sileht/deb-openstack-nova,gspilio/nova,devoid/nova,saleemjaveds/https-github.com-openstack-nova,yatinkumbhare/openstack-nova,Brocade-OpenSource/OpenStack-DNRM-Nova,usc-isi/extra-specs,affo/nova,MountainWei/nova,citrix-openstack-build/nova,gooddata/openstack-nova,spring-week-topos/nova-week,gooddata/openstack-nova,devendermishrajio/nova,ted-gould/nova,nikesh-mahalka/nova,sileht/deb-openstack-nova,badock/nova,bigswitch/nova,TieWei/nova,yosshy/nova,CiscoSystems/nova,mikalstill/nova,blueboxgroup/nova,ted-gould/nova,cloudbase/nova,Stavitsky/nova,bigswitch/nova,bgxavier/nova,petrutlucian94/nova,houshengbo/nova_vmware_compute_driver,maheshp/novatest,mahak/nova,Metaswitch/calico-nova,tianweizhang/nova,belmiromoreira/nova,viggates/nova,paulmathews/nova,petrutlucian94/nova_dev,houshengbo/nova_vmware_compute_driver,NoBodyCam/TftpPxeBootBareMetal,devendermishrajio/nova_test_latest,rajalokan/nova,sridevikoushik31/openstack,phenoxim/nova,cloudbase/nova,Triv90/Nova,Tehsmash/nova,iuliat/nova,CloudServer/nova,affo/nova,rrader/nova-docker-plugin,cyx1231st/nova,devendermishrajio/nova_test_latest,LoHChina/nova,adelina-t/nova,savi-dev/nova,mikalstill/nova,cernops/nova,dstroppa/openstack-smartos-nova-grizzly,Metaswitch/calico-nova,rahulunair/nova,edulramirez/nova