LU-10515 utils: remove obd.c dependencies from lustre_rsync

LU-10515 utils: remove obd.c dependencies from lustre_rsync

lustre_rsync does not depend on /dev/obd and therefore should not call
register_ioc_dev(OBD_DEV_ID, OBD_DEV_PATH). So remove the
call. Replace erroneous uses of D_TRACE with the locally defined
DTRACE constant. Remove unneeded includes.

Test-Parameters: trivial testlist=lustre-rsync-test

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I3251469d48f4c60106dd14d1bf97e159a147688c
Reviewed-on: https://review.whamcloud.com/30870
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>