LU-2675 lustre: remove linux/lustre_common.h

LU-2675 lustre: remove linux/lustre_common.h

Remove lustre/include/linux/lustre_common.h and several unnecessary
calls to cfs_cleanup_group_info().

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I149673dea6559b02a5de1c0a160836d67ea96119
Reviewed-on: http://review.whamcloud.com/11495
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>