VMware: ensure that fake VM deletion returns a task
VMware: ensure that fake VM deletion returns a task

The VM deletion was not returning a task. This would result in
an exception. The exception was swallowed by the fact that the
destroy method swallows all exceptions.

TrivialFix

Change-Id: I55d4b91861ffec285b6d64feb277e6e68669121c

mikalstill/nova,sebrandon1/nova,Juniper/nova,zhimin711/nova,jianghuaw/nova,openstack/nova,Juniper/nova,cloudbase/nova,LoHChina/nova,akash1808/nova,eonpatapon/nova,dawnpower/nova,CEG-FYP-OpenStack/scheduler,zhimin711/nova,affo/nova,cloudbase/nova-virtualbox,Yusuke1987/openstack_template,BeyondTheClouds/nova,alvarolopez/nova,ted-gould/nova,alaski/nova,varunarya10/nova_test_latest,akash1808/nova,takeshineshiro/nova,Francis-Liu/animated-broccoli,barnsnake351/nova,klmitch/nova,eonpatapon/nova,JioCloud/nova_test_latest,JianyuWang/nova,mahak/nova,gooddata/openstack-nova,yosshy/nova,cernops/nova,petrutlucian94/nova,LoHChina/nova,klmitch/nova,gooddata/openstack-nova,JioCloud/nova,projectcalico/calico-nova,yatinkumbhare/openstack-nova,cyx1231st/nova,tangfeixiong/nova,hanlind/nova,barnsnake351/nova,shail2810/nova,Stavitsky/nova,gooddata/openstack-nova,CCI-MOC/nova,adelina-t/nova,cernops/nova,devendermishrajio/nova_test_latest,cyx1231st/nova,scripnichenko/nova,BeyondTheClouds/nova,fnordahl/nova,blueboxgroup/nova,cloudbase/nova,mgagne/nova,noironetworks/nova,akash1808/nova_test_latest,isyippee/nova,yatinkumbhare/openstack-nova,raildo/nova,projectcalico/calico-nova,nikesh-mahalka/nova,dims/nova,apporc/nova,Francis-Liu/animated-broccoli,tealover/nova,phenoxim/nova,noironetworks/nova,belmiromoreira/nova,jianghuaw/nova,rajalokan/nova,NeCTAR-RC/nova,raildo/nova,Tehsmash/nova,mandeepdhami/nova,Stavitsky/nova,rahulunair/nova,mandeepdhami/nova,iuliat/nova,rajalokan/nova,alexandrucoman/vbox-nova-driver,watonyweng/nova,alvarolopez/nova,JianyuWang/nova,mikalstill/nova,tudorvio/nova,jeffrey4l/nova,apporc/nova,dawnpower/nova,Juniper/nova,vmturbo/nova,JioCloud/nova_test_latest,ted-gould/nova,whitepages/nova,ruslanloman/nova,rahulunair/nova,belmiromoreira/nova,CCI-MOC/nova,nikesh-mahalka/nova,bgxavier/nova,silenceli/nova,edulramirez/nova,MountainWei/nova,orbitfp7/nova,hanlind/nova,rajalokan/nova,rahulunair/nova,bgxavier/nova,hanlind/nova,klmitch/nova,vmturbo/nova,joker946/nova,adelina-t/nova,yosshy/nova,zaina/nova,klmitch/nova,phenoxim/nova,mahak/nova,double12gzh/nova,dims/nova,felixma/nova,cloudbase/nova-virtualbox,alexandrucoman/vbox-nova-driver,Metaswitch/calico-nova,devendermishrajio/nova_test_latest,orbitfp7/nova,tudorvio/nova,zzicewind/nova,MountainWei/nova,tangfeixiong/nova,varunarya10/nova_test_latest,Yusuke1987/openstack_template,felixma/nova,scripnichenko/nova,j-carpentier/nova,silenceli/nova,jeffrey4l/nova,CEG-FYP-OpenStack/scheduler,vmturbo/nova,mmnelemane/nova,watonyweng/nova,openstack/nova,thomasem/nova,jianghuaw/nova,tealover/nova,mahak/nova,CloudServer/nova,NeCTAR-RC/nova,blueboxgroup/nova,whitepages/nova,mikalstill/nova,kimjaejoong/nova,thomasem/nova,kimjaejoong/nova,double12gzh/nova,devendermishrajio/nova,TwinkleChawla/nova,BeyondTheClouds/nova,alaski/nova,Tehsmash/nova,bigswitch/nova,fnordahl/nova,ruslanloman/nova,akash1808/nova_test_latest,Juniper/nova,affo/nova,openstack/nova,edulramirez/nova,sebrandon1/nova,shail2810/nova,j-carpentier/nova,TwinkleChawla/nova,jianghuaw/nova,iuliat/nova,cloudbase/nova,joker946/nova,takeshineshiro/nova,rajalokan/nova,JioCloud/nova,vmturbo/nova,mmnelemane/nova,bigswitch/nova,CloudServer/nova,zzicewind/nova,gooddata/openstack-nova,zaina/nova,devendermishrajio/nova,mgagne/nova,isyippee/nova,petrutlucian94/nova,Metaswitch/calico-nova,sebrandon1/nova,cernops/nova