Callers of task s3tests.create_users don't need to provide dummy "fixtures" dict.
Callers of task s3tests.create_users don't need to provide dummy "fixtures" dict.

dreamhost/teuthology,t-miyamae/teuthology,yghannam/teuthology,robbat2/teuthology,ivotron/teuthology,zhouyuan/teuthology,ktdreyer/teuthology,dreamhost/teuthology,dmick/teuthology,SUSE/teuthology,ceph/teuthology,t-miyamae/teuthology,michaelsevilla/teuthology,michaelsevilla/teuthology,SUSE/teuthology,caibo2014/teuthology,ivotron/teuthology,zhouyuan/teuthology,dmick/teuthology,SUSE/teuthology,dmick/teuthology,caibo2014/teuthology,ceph/teuthology,robbat2/teuthology,tchaikov/teuthology,yghannam/teuthology,tchaikov/teuthology,ktdreyer/teuthology