LU-6245 libcfs: cleanup libcfs lock handling

LU-6245 libcfs: cleanup libcfs lock handling

Previously with libcfs being built for user land and kernel
space wrappers were created to transparently handle locking.
Now that user land support has been removed we delete all
those locking wrappers with this patch.

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: Icbd9b5c0918cb01202439416b220b6f327144a91
Reviewed-on: http://review.whamcloud.com/13793
Tested-by: Jenkins
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>