Removed duplicate spawn code in PowerVM driver
Removed duplicate spawn code in PowerVM driver

After introducing resize/migrate in PowerVM there was
some code that was duplicated after a rebase. The commit
removes the duplicate code. The functionality of
resize/migrate remains the same as introducted in
Change I72345626

Bug #1130680

Change-Id: I1fe3d8e1f2a19fd40a03c8c38d90c01711356b38

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