Remove returns of user_update api
Remove returns of user_update api

Fix wrong error message after changing admins password.

Change-Id: Id715b168526a876737a05771c1c8e259063e1ccb
Closes-Bug: #1252738

bigswitch/horizon,wolverineav/horizon,BiznetGIO/horizon,noironetworks/horizon,Tesora/tesora-horizon,Mirantis/mos-horizon,pranavtendolkr/horizon,izadorozhna/dashboard_integration_tests,anthonydillon/horizon,izadorozhna/dashboard_integration_tests,karthik-suresh/horizon,endorphinl/horizon-fork,promptworks/horizon,ikargis/horizon_fod,tqtran7/horizon,yjxtogo/horizon,ChameleonCloud/horizon,VaneCloud/horizon,Solinea/horizon,endorphinl/horizon-fork,agileblaze/OpenStackTwoFactorAuthentication,idjaw/horizon,CiscoSystems/horizon,icloudrnd/automation_tools,Tesora/tesora-horizon,xinwu/horizon,noironetworks/horizon,froyobin/horizon,coreycb/horizon,j4/horizon,Hodorable/0602,froyobin/horizon,gerrive/horizon,mrunge/openstack_horizon,henaras/horizon,newrocknj/horizon,takeshineshiro/horizon,eayunstack/horizon,agileblaze/OpenStackTwoFactorAuthentication,mandeepdhami/horizon,CiscoSystems/horizon,henaras/horizon,gochist/horizon,idjaw/horizon,blueboxgroup/horizon,openstack/horizon,davidcusatis/horizon,wolverineav/horizon,aaronorosen/horizon-congress,Daniex/horizon,takeshineshiro/horizon,tqtran7/horizon,anthonydillon/horizon,damien-dg/horizon,yeming233/horizon,orbitfp7/horizon,orbitfp7/horizon,luhanhan/horizon,NeCTAR-RC/horizon,damien-dg/horizon,luhanhan/horizon,endorphinl/horizon-fork,nvoron23/avos,RudoCris/horizon,JioCloud/horizon,zouyapeng/horizon,philoniare/horizon,Daniex/horizon,gochist/horizon,sandvine/horizon,wolverineav/horizon,dan1/horizon-proto,j4/horizon,Mirantis/mos-horizon,ging/horizon,endorphinl/horizon,henaras/horizon,Hodorable/0602,liyitest/rr,mrunge/horizon_lib,dan1/horizon-proto,redhat-cip/horizon,CiscoSystems/horizon,maestro-hybrid-cloud/horizon,redhat-openstack/horizon,davidcusatis/horizon,luhanhan/horizon,tqtran7/horizon,xme1226/horizon,zouyapeng/horizon,tellesnobrega/horizon,Mirantis/mos-horizon,tellesnobrega/horizon,FNST-OpenStack/horizon,blueboxgroup/horizon,NCI-Cloud/horizon,henaras/horizon,icloudrnd/automation_tools,RudoCris/horizon,Dark-Hacker/horizon,vladryk/horizon,Solinea/horizon,tanglei528/horizon,philoniare/horizon,ging/horizon,icloudrnd/automation_tools,yanheven/console,liyitest/rr,agileblaze/OpenStackTwoFactorAuthentication,doug-fish/horizon,mdavid/horizon,vladryk/horizon,bac/horizon,mrunge/horizon,openstack/horizon,Tesora/tesora-horizon,saydulk/horizon,yjxtogo/horizon,anthonydillon/horizon,pranavtendolkr/horizon,CiscoSystems/avos,zouyapeng/horizon,xinwu/horizon,Metaswitch/horizon,BiznetGIO/horizon,ChameleonCloud/horizon,dan1/horizon-x509,flochaz/horizon,takeshineshiro/horizon,wangxiangyu/horizon,dan1/horizon-proto,karthik-suresh/horizon,dan1/horizon-proto,icloudrnd/automation_tools,NeCTAR-RC/horizon,Metaswitch/horizon,mrunge/openstack_horizon,bigswitch/horizon,wangxiangyu/horizon,maestro-hybrid-cloud/horizon,promptworks/horizon,j4/horizon,Hodorable/0602,yjxtogo/horizon,tellesnobrega/horizon,mandeepdhami/horizon,yjxtogo/horizon,Dark-Hacker/horizon,NCI-Cloud/horizon,redhat-openstack/horizon,philoniare/horizon,noironetworks/horizon,froyobin/horizon,vladryk/horizon,tsufiev/horizon,xme1226/horizon,flochaz/horizon,sandvine/horizon,JioCloud/horizon,mrunge/horizon,RudoCris/horizon,endorphinl/horizon,Hodorable/0602,saydulk/horizon,endorphinl/horizon-fork,wangxiangyu/horizon,philoniare/horizon,bigswitch/horizon,eayunstack/horizon,flochaz/horizon,mrunge/horizon,anthonydillon/horizon,bigswitch/horizon,davidcusatis/horizon,karthik-suresh/horizon,ging/horizon,liyitest/rr,tqtran7/horizon,mdavid/horizon,gochist/horizon,nvoron23/avos,FNST-OpenStack/horizon,redhat-openstack/horizon,blueboxgroup/horizon,maestro-hybrid-cloud/horizon,davidcusatis/horizon,agileblaze/OpenStackTwoFactorAuthentication,Daniex/horizon,openstack/horizon,yeming233/horizon,watonyweng/horizon,redhat-cip/horizon,spring-week-topos/horizon-week,eayunstack/horizon,JioCloud/horizon,watonyweng/horizon,CiscoSystems/avos,kfox1111/horizon,sandvine/horizon,RudoCris/horizon,coreycb/horizon,yanheven/console,kfox1111/horizon,spring-week-topos/horizon-week,django-leonardo/horizon,saydulk/horizon,sandvine/horizon,dan1/horizon-x509,dan1/horizon-x509,BiznetGIO/horizon,bac/horizon,takeshineshiro/horizon,tellesnobrega/horizon,endorphinl/horizon,karthik-suresh/horizon,liyitest/rr,CiscoSystems/horizon,coreycb/horizon,blueboxgroup/horizon,gerrive/horizon,maestro-hybrid-cloud/horizon,xinwu/horizon,watonyweng/horizon,mandeepdhami/horizon,xinwu/horizon,flochaz/horizon,mdavid/horizon,tsufiev/horizon,redhat-cip/horizon,CiscoSystems/avos,CiscoSystems/avos,mandeepdhami/horizon,Metaswitch/horizon,openstack/horizon,spring-week-topos/horizon-week,mrunge/horizon_lib,wolverineav/horizon,bac/horizon,vladryk/horizon,kfox1111/horizon,NeCTAR-RC/horizon,django-leonardo/horizon,mrunge/horizon_lib,nvoron23/avos,tanglei528/horizon,Metaswitch/horizon,aaronorosen/horizon-congress,coreycb/horizon,pranavtendolkr/horizon,newrocknj/horizon,damien-dg/horizon,kfox1111/horizon,dan1/horizon-x509,doug-fish/horizon,tsufiev/horizon,watonyweng/horizon,yeming233/horizon,endorphinl/horizon,NeCTAR-RC/horizon,newrocknj/horizon,promptworks/horizon,django-leonardo/horizon,NCI-Cloud/horizon,yanheven/console,VaneCloud/horizon,luhanhan/horizon,Solinea/horizon,saydulk/horizon,tanglei528/horizon,Dark-Hacker/horizon,doug-fish/horizon,zouyapeng/horizon,bac/horizon,nvoron23/avos,mrunge/openstack_horizon,orbitfp7/horizon,VaneCloud/horizon,Mirantis/mos-horizon,BiznetGIO/horizon,ikargis/horizon_fod,VaneCloud/horizon,noironetworks/horizon,damien-dg/horizon,idjaw/horizon,newrocknj/horizon,FNST-OpenStack/horizon,ging/horizon,ChameleonCloud/horizon,xme1226/horizon,yeming233/horizon,ikargis/horizon_fod,Tesora/tesora-horizon,ChameleonCloud/horizon,django-leonardo/horizon,mdavid/horizon,redhat-cip/horizon,redhat-openstack/horizon,NCI-Cloud/horizon,orbitfp7/horizon,gerrive/horizon,Dark-Hacker/horizon,gerrive/horizon,j4/horizon,wangxiangyu/horizon,Solinea/horizon,FNST-OpenStack/horizon,idjaw/horizon,promptworks/horizon,aaronorosen/horizon-congress,Daniex/horizon,pranavtendolkr/horizon,doug-fish/horizon,tsufiev/horizon