Removed scheduler doc costs section
Removed scheduler doc costs section

Since commit 820f43fc (Change-Id
Ie3e7611347c334c359dea98d759345b97c66c9c1)
costs are no longer used, so all references to them have been removed.

Change-Id: I6e02bc47643be9f9dfe9d2e42b2335626bf039e7

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