suite: clean up imports
suite: clean up imports

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@inktank.com>

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