Remove deprecated OPENSTACK_QUANTUM_NETWORK
Remove deprecated OPENSTACK_QUANTUM_NETWORK

OPENSTACK_QUANTUM_NETWORK was deprecated in Juno release.
We are in Liberty now and it is time to remove this parameter
and we should use OPENSTACK_NEUTRON_NETWORK.

UpgradeImpact
Change-Id: I2be1d11b69665d1eb15d39b95119d84537918533
Closes-Bug: #1448503

newrocknj/horizon,doug-fish/horizon,dan1/horizon-x509,philoniare/horizon,maestro-hybrid-cloud/horizon,mdavid/horizon,luhanhan/horizon,mdavid/horizon,FNST-OpenStack/horizon,wolverineav/horizon,henaras/horizon,newrocknj/horizon,anthonydillon/horizon,damien-dg/horizon,endorphinl/horizon,icloudrnd/automation_tools,henaras/horizon,anthonydillon/horizon,karthik-suresh/horizon,idjaw/horizon,redhat-openstack/horizon,Solinea/horizon,NeCTAR-RC/horizon,watonyweng/horizon,BiznetGIO/horizon,philoniare/horizon,coreycb/horizon,endorphinl/horizon-fork,kfox1111/horizon,django-leonardo/horizon,Tesora/tesora-horizon,NeCTAR-RC/horizon,eayunstack/horizon,Tesora/tesora-horizon,icloudrnd/automation_tools,BiznetGIO/horizon,NeCTAR-RC/horizon,Mirantis/mos-horizon,openstack/horizon,doug-fish/horizon,NeCTAR-RC/horizon,idjaw/horizon,agileblaze/OpenStackTwoFactorAuthentication,liyitest/rr,django-leonardo/horizon,bac/horizon,dan1/horizon-x509,xinwu/horizon,luhanhan/horizon,wolverineav/horizon,Mirantis/mos-horizon,Metaswitch/horizon,liyitest/rr,redhat-openstack/horizon,redhat-cip/horizon,bac/horizon,watonyweng/horizon,j4/horizon,Hodorable/0602,tellesnobrega/horizon,liyitest/rr,ChameleonCloud/horizon,django-leonardo/horizon,maestro-hybrid-cloud/horizon,Mirantis/mos-horizon,takeshineshiro/horizon,mandeepdhami/horizon,tellesnobrega/horizon,gerrive/horizon,coreycb/horizon,sandvine/horizon,mandeepdhami/horizon,endorphinl/horizon,openstack/horizon,Tesora/tesora-horizon,kfox1111/horizon,davidcusatis/horizon,yjxtogo/horizon,Dark-Hacker/horizon,ChameleonCloud/horizon,Dark-Hacker/horizon,damien-dg/horizon,mandeepdhami/horizon,saydulk/horizon,endorphinl/horizon,endorphinl/horizon-fork,coreycb/horizon,vladryk/horizon,Hodorable/0602,henaras/horizon,yeming233/horizon,mdavid/horizon,mandeepdhami/horizon,liyitest/rr,RudoCris/horizon,FNST-OpenStack/horizon,tqtran7/horizon,tellesnobrega/horizon,noironetworks/horizon,luhanhan/horizon,eayunstack/horizon,bigswitch/horizon,redhat-cip/horizon,xinwu/horizon,vladryk/horizon,agileblaze/OpenStackTwoFactorAuthentication,bigswitch/horizon,newrocknj/horizon,vladryk/horizon,philoniare/horizon,tqtran7/horizon,redhat-openstack/horizon,Metaswitch/horizon,doug-fish/horizon,RudoCris/horizon,takeshineshiro/horizon,icloudrnd/automation_tools,sandvine/horizon,maestro-hybrid-cloud/horizon,j4/horizon,newrocknj/horizon,bac/horizon,yjxtogo/horizon,philoniare/horizon,Solinea/horizon,BiznetGIO/horizon,j4/horizon,dan1/horizon-x509,luhanhan/horizon,RudoCris/horizon,maestro-hybrid-cloud/horizon,noironetworks/horizon,dan1/horizon-proto,dan1/horizon-x509,Mirantis/mos-horizon,saydulk/horizon,henaras/horizon,karthik-suresh/horizon,ChameleonCloud/horizon,yjxtogo/horizon,xinwu/horizon,davidcusatis/horizon,kfox1111/horizon,Solinea/horizon,damien-dg/horizon,yeming233/horizon,agileblaze/OpenStackTwoFactorAuthentication,bigswitch/horizon,Dark-Hacker/horizon,eayunstack/horizon,dan1/horizon-proto,Tesora/tesora-horizon,FNST-OpenStack/horizon,damien-dg/horizon,davidcusatis/horizon,endorphinl/horizon-fork,takeshineshiro/horizon,idjaw/horizon,saydulk/horizon,sandvine/horizon,dan1/horizon-proto,Metaswitch/horizon,davidcusatis/horizon,redhat-openstack/horizon,bac/horizon,doug-fish/horizon,Solinea/horizon,noironetworks/horizon,redhat-cip/horizon,gerrive/horizon,coreycb/horizon,vladryk/horizon,Dark-Hacker/horizon,j4/horizon,BiznetGIO/horizon,Hodorable/0602,anthonydillon/horizon,takeshineshiro/horizon,wolverineav/horizon,tellesnobrega/horizon,bigswitch/horizon,yjxtogo/horizon,yeming233/horizon,yeming233/horizon,sandvine/horizon,gerrive/horizon,ChameleonCloud/horizon,openstack/horizon,kfox1111/horizon,mdavid/horizon,FNST-OpenStack/horizon,endorphinl/horizon,noironetworks/horizon,tqtran7/horizon,wolverineav/horizon,xinwu/horizon,dan1/horizon-proto,idjaw/horizon,watonyweng/horizon,gerrive/horizon,Metaswitch/horizon,agileblaze/OpenStackTwoFactorAuthentication,RudoCris/horizon,karthik-suresh/horizon,tqtran7/horizon,Hodorable/0602,karthik-suresh/horizon,openstack/horizon,anthonydillon/horizon,django-leonardo/horizon,saydulk/horizon,redhat-cip/horizon,endorphinl/horizon-fork,watonyweng/horizon,icloudrnd/automation_tools