remove redundant negative flavor admin tests
remove redundant negative flavor admin tests

These tests are now in the nova functional test tree, which is a
better place to put them. The nova tests go a step further and
actually verify the database is correct after these land.

Depends-On: I0cc37c0a49e26b965403bb3ed59ff4569f0952f1

Change-Id: I37a5ccc0f1ff0a62f0f097e80620ec1883ba61f3
hayderimran7/tempest,hpcloud-mon/tempest,vedujoshi/tempest,neerja28/Tempest,openstack/tempest,alinbalutoiu/tempest,NexusIS/tempest,pandeyop/tempest,LIS/lis-tempest,manasi24/jiocloud-tempest-qatempest,eggmaster/tempest,zsoltdudas/lis-tempest,roopali8/tempest,sebrandon1/tempest,rakeshmi/tempest,danielmellado/tempest,pczerkas/tempest,LIS/lis-tempest,cisco-openstack/tempest,danielmellado/tempest,jaspreetw/tempest,manasi24/tempest,manasi24/jiocloud-tempest-qatempest,hayderimran7/tempest,bigswitch/tempest,Juraci/tempest,Juraci/tempest,eggmaster/tempest,Tesora/tesora-tempest,cisco-openstack/tempest,izadorozhna/tempest,neerja28/Tempest,redhat-cip/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,JioCloud/tempest,NexusIS/tempest,manasi24/tempest,bigswitch/tempest,dkalashnik/tempest,Tesora/tesora-tempest,varunarya10/tempest,xbezdick/tempest,dkalashnik/tempest,redhat-cip/tempest,vedujoshi/tempest,JioCloud/tempest,jaspreetw/tempest,tonyli71/tempest,flyingfish007/tempest,alinbalutoiu/tempest,zsoltdudas/lis-tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,varunarya10/tempest,rakeshmi/tempest,yamt/tempest,sebrandon1/tempest,akash1808/tempest,akash1808/tempest,tonyli71/tempest,pczerkas/tempest,nunogt/tempest,masayukig/tempest,roopali8/tempest,Juniper/tempest,masayukig/tempest,yamt/tempest,nunogt/tempest,pandeyop/tempest,flyingfish007/tempest,Juniper/tempest,afaheem88/tempest,tudorvio/tempest,hpcloud-mon/tempest,afaheem88/tempest,izadorozhna/tempest,openstack/tempest,tudorvio/tempest,xbezdick/tempest