LU-6215 llite: remove obsolete conditional code

LU-6215 llite: remove obsolete conditional code

Remove conditional flock/aops code that was only for out-of-tree
vendor kernels but is not relevant anymore.

Linux-commit: 3746e6f93bbf28a25d2d69350ab6bfba02e14654

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: If119a2da2bbc30a48d872029bd048ea90a3ebbe5
Reviewed-on: http://review.whamcloud.com/19890
Tested-by: Jenkins
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Frank Zago <fzago@cray.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>