Fix nova-volume-usage-audit
Fix nova-volume-usage-audit

utils.default_cfgfile have been removed from nova/utils, so
remove it here as well.

Fixes LP: #1065069

Change-Id: I71f6c7850123ef0c1ef4fedf608de13b31dafb32
Signed-off-by: Chuck Short <753a8074f04ffd62a8fff7516e3ae689be8e35ad@canonical.com>

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