Clean '/tmp' after image upload from horizon
Clean '/tmp' after image upload from horizon

After image upload(successful or fails) from horizon, image
cleaned up from the /tmp

Closes-Bug: #1398766

Change-Id: I2c40e67234a8d0c8bdef9838b863ade9f5434083

NeCTAR-RC/horizon,wolverineav/horizon,Daniex/horizon,NCI-Cloud/horizon,damien-dg/horizon,xinwu/horizon,icloudrnd/automation_tools,doug-fish/horizon,openstack/horizon,vladryk/horizon,sandvine/horizon,j4/horizon,Tesora/tesora-horizon,django-leonardo/horizon,NCI-Cloud/horizon,redhat-openstack/horizon,bac/horizon,Mirantis/mos-horizon,saydulk/horizon,mandeepdhami/horizon,dan1/horizon-proto,luhanhan/horizon,promptworks/horizon,maestro-hybrid-cloud/horizon,ChameleonCloud/horizon,karthik-suresh/horizon,luhanhan/horizon,FNST-OpenStack/horizon,Tesora/tesora-horizon,Daniex/horizon,liyitest/rr,NeCTAR-RC/horizon,yeming233/horizon,maestro-hybrid-cloud/horizon,watonyweng/horizon,luhanhan/horizon,orbitfp7/horizon,anthonydillon/horizon,promptworks/horizon,coreycb/horizon,CiscoSystems/horizon,wolverineav/horizon,watonyweng/horizon,bac/horizon,VaneCloud/horizon,Tesora/tesora-horizon,davidcusatis/horizon,dan1/horizon-proto,icloudrnd/automation_tools,henaras/horizon,vladryk/horizon,saydulk/horizon,Metaswitch/horizon,agileblaze/OpenStackTwoFactorAuthentication,BiznetGIO/horizon,dan1/horizon-x509,davidcusatis/horizon,takeshineshiro/horizon,mandeepdhami/horizon,anthonydillon/horizon,blueboxgroup/horizon,liyitest/rr,yjxtogo/horizon,pranavtendolkr/horizon,orbitfp7/horizon,tqtran7/horizon,FNST-OpenStack/horizon,Hodorable/0602,Tesora/tesora-horizon,yeming233/horizon,xinwu/horizon,mandeepdhami/horizon,izadorozhna/dashboard_integration_tests,henaras/horizon,redhat-openstack/horizon,bigswitch/horizon,pranavtendolkr/horizon,Mirantis/mos-horizon,BiznetGIO/horizon,vladryk/horizon,tellesnobrega/horizon,tellesnobrega/horizon,takeshineshiro/horizon,maestro-hybrid-cloud/horizon,henaras/horizon,eayunstack/horizon,BiznetGIO/horizon,VaneCloud/horizon,CiscoSystems/horizon,saydulk/horizon,icloudrnd/automation_tools,CiscoSystems/horizon,sandvine/horizon,damien-dg/horizon,redhat-cip/horizon,damien-dg/horizon,newrocknj/horizon,NeCTAR-RC/horizon,eayunstack/horizon,Dark-Hacker/horizon,sandvine/horizon,Daniex/horizon,izadorozhna/dashboard_integration_tests,Solinea/horizon,tellesnobrega/horizon,Dark-Hacker/horizon,endorphinl/horizon,dan1/horizon-x509,tsufiev/horizon,dan1/horizon-x509,dan1/horizon-x509,agileblaze/OpenStackTwoFactorAuthentication,endorphinl/horizon-fork,openstack/horizon,j4/horizon,philoniare/horizon,Solinea/horizon,Dark-Hacker/horizon,sandvine/horizon,NCI-Cloud/horizon,promptworks/horizon,Mirantis/mos-horizon,promptworks/horizon,coreycb/horizon,VaneCloud/horizon,RudoCris/horizon,j4/horizon,bac/horizon,tsufiev/horizon,django-leonardo/horizon,tellesnobrega/horizon,wangxiangyu/horizon,idjaw/horizon,Metaswitch/horizon,doug-fish/horizon,kfox1111/horizon,vladryk/horizon,bigswitch/horizon,xinwu/horizon,pranavtendolkr/horizon,wangxiangyu/horizon,endorphinl/horizon-fork,doug-fish/horizon,RudoCris/horizon,yjxtogo/horizon,mdavid/horizon,Daniex/horizon,django-leonardo/horizon,idjaw/horizon,bigswitch/horizon,yjxtogo/horizon,blueboxgroup/horizon,redhat-openstack/horizon,mdavid/horizon,endorphinl/horizon-fork,davidcusatis/horizon,noironetworks/horizon,watonyweng/horizon,gerrive/horizon,openstack/horizon,FNST-OpenStack/horizon,Metaswitch/horizon,CiscoSystems/horizon,newrocknj/horizon,endorphinl/horizon,VaneCloud/horizon,pranavtendolkr/horizon,blueboxgroup/horizon,orbitfp7/horizon,philoniare/horizon,NCI-Cloud/horizon,takeshineshiro/horizon,idjaw/horizon,tqtran7/horizon,Mirantis/mos-horizon,luhanhan/horizon,philoniare/horizon,BiznetGIO/horizon,mandeepdhami/horizon,ChameleonCloud/horizon,davidcusatis/horizon,gerrive/horizon,wangxiangyu/horizon,Solinea/horizon,coreycb/horizon,RudoCris/horizon,wolverineav/horizon,saydulk/horizon,ChameleonCloud/horizon,coreycb/horizon,mdavid/horizon,karthik-suresh/horizon,yjxtogo/horizon,Hodorable/0602,doug-fish/horizon,watonyweng/horizon,blueboxgroup/horizon,tqtran7/horizon,j4/horizon,FNST-OpenStack/horizon,takeshineshiro/horizon,henaras/horizon,Hodorable/0602,endorphinl/horizon,newrocknj/horizon,gerrive/horizon,orbitfp7/horizon,newrocknj/horizon,ChameleonCloud/horizon,endorphinl/horizon-fork,kfox1111/horizon,Hodorable/0602,endorphinl/horizon,noironetworks/horizon,dan1/horizon-proto,mdavid/horizon,redhat-cip/horizon,redhat-openstack/horizon,philoniare/horizon,yeming233/horizon,wolverineav/horizon,tsufiev/horizon,agileblaze/OpenStackTwoFactorAuthentication,Dark-Hacker/horizon,bac/horizon,Solinea/horizon,RudoCris/horizon,noironetworks/horizon,icloudrnd/automation_tools,anthonydillon/horizon,eayunstack/horizon,agileblaze/OpenStackTwoFactorAuthentication,anthonydillon/horizon,liyitest/rr,kfox1111/horizon,damien-dg/horizon,dan1/horizon-proto,karthik-suresh/horizon,maestro-hybrid-cloud/horizon,xinwu/horizon,yeming233/horizon,noironetworks/horizon,Metaswitch/horizon,wangxiangyu/horizon,bigswitch/horizon,openstack/horizon,idjaw/horizon,gerrive/horizon,tqtran7/horizon,NeCTAR-RC/horizon,kfox1111/horizon,redhat-cip/horizon,liyitest/rr,django-leonardo/horizon,redhat-cip/horizon,karthik-suresh/horizon,tsufiev/horizon