Remove superflous 'instances' joinedload
Remove superflous 'instances' joinedload

We already specify instances.{system_metadata,info_cache} as columns to
join so, loading 'instances' is implicit joinedload_all() behaviour.

Change-Id: I0c28e3b4d2ce8b5884d1247a7f96ecc810842d93

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