Update nova.conf.sample
Update nova.conf.sample

Regenerate to account for unused options which were removed by
commit ea06eff7e7

DocImpact: update nova.conf docs
Change-Id: I1082d2869d0b9d33747fb877efb6d99344074b2c

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