* refs/pull/27021/head: msg: remove XioMessenger qa/suites/rados/thrash-old-clients: add nautilus qa/suites/rados/thrash-old-clients: add mimic v1 variant qa/suites/rados/thrash-old-clients: add mimic qa/suites/rados/thrash-old-clients: collapse msgr and client choice qa: remove simplemessenger tests ceph_test_msgr: remove simple msg: remove SimpleMessenger Reviewed-by: xie xingguo <xie.xingguo@zte.com.cn> Reviewed-by: Matt Benjamin <mbenjami@redhat.com> Reviewed-by: Kefu Chai <kchai@redhat.com>