LU-1538 utils: remove obsolete scripts

LU-1538 utils: remove obsolete scripts

A number of obsolete test, build, and helper scripts are removed,
because they are no longer useful.

  lustre/doc/chbar.sh
  lustre/doc/postbar
  lustre/doc/tex2pdf
  lustre/scripts/bdev-io-survey.sh
  lustre/scripts/dodiff.sh
  lustre/scripts/maketags.sh
  lustre/tests/sanity-nano.sh
  lustre/utils/loadmod_all.sh

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Change-Id: I109133aadfc75f9812259e560710dc70036e3dd6
Reviewed-on: http://review.whamcloud.com/6227
Tested-by: Hudson
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Prakash Surya <surya1@llnl.gov>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>