LU-6245 utils: remove libcfs.h from lustre utilities code

LU-6245 utils: remove libcfs.h from lustre utilities code

Since user land libcfs is mostly gone libcfs.h can be
removed from the code that is used to create the lustre
utilities such as lfs and mount.lustre.

Change-Id: I5e0dd7d9ad44e988b2045906d2179dc3e2538d38
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/15217
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: frank zago <fzago@cray.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>