Remove unused fields in base TestCase
Remove unused fields in base TestCase

These fields are not used so shouldn't be defined.

Change-Id: I03782e69707aa873a60d9ff76211ca8587e629c6

ilay09/keystone,roopali8/keystone,ilay09/keystone,vivekdhayaal/keystone,openstack/keystone,promptworks/keystone,mahak/keystone,rajalokan/keystone,rajalokan/keystone,cernops/keystone,promptworks/keystone,MaheshIBM/keystone,idjaw/keystone,himanshu-setia/keystone,rushiagr/keystone,ajayaa/keystone,mahak/keystone,jumpstarter-io/keystone,vivekdhayaal/keystone,nuxeh/keystone,nuxeh/keystone,rushiagr/keystone,UTSA-ICS/keystone-kerberos,jumpstarter-io/keystone,dims/keystone,idjaw/keystone,vivekdhayaal/keystone,blueboxgroup/keystone,klmitch/keystone,jonnary/keystone,cernops/keystone,jamielennox/keystone,nuxeh/keystone,dstanek/keystone,takeshineshiro/keystone,mahak/keystone,openstack/keystone,jonnary/keystone,maestro-hybrid-cloud/keystone,dims/keystone,takeshineshiro/keystone,promptworks/keystone,jamielennox/keystone,dstanek/keystone,jumpstarter-io/keystone,roopali8/keystone,rushiagr/keystone,klmitch/keystone,openstack/keystone,rajalokan/keystone,ilay09/keystone,MaheshIBM/keystone,UTSA-ICS/keystone-kerberos,ajayaa/keystone,himanshu-setia/keystone,blueboxgroup/keystone,dstanek/keystone,maestro-hybrid-cloud/keystone