Do not pass wait_until to create_server()
Do not pass wait_until to create_server()

create_server() of compute service client doesn't support wait_until
parameter but create_test_server() passes it to create_server().
This patch makes create_test_server() don't do that.

Change-Id: I8d325880995d60fa87891834de01cd90f868a76d

rakeshmi/tempest,bigswitch/tempest,Juniper/tempest,izadorozhna/tempest,zsoltdudas/lis-tempest,bigswitch/tempest,LIS/lis-tempest,izadorozhna/tempest,dkalashnik/tempest,flyingfish007/tempest,tonyli71/tempest,masayukig/tempest,LIS/lis-tempest,vedujoshi/tempest,cisco-openstack/tempest,openstack/tempest,pczerkas/tempest,rakeshmi/tempest,tonyli71/tempest,xbezdick/tempest,flyingfish007/tempest,openstack/tempest,Tesora/tesora-tempest,sebrandon1/tempest,vedujoshi/tempest,dkalashnik/tempest,pczerkas/tempest,sebrandon1/tempest,masayukig/tempest,zsoltdudas/lis-tempest,Tesora/tesora-tempest,cisco-openstack/tempest,xbezdick/tempest,Juniper/tempest