ceph.conf: remove other random bits
ceph.conf: remove other random bits

obsolete sections, mds tuning.  stick with defaults.

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