LU-2675 lnet: remove ulnds

LU-2675 lnet: remove ulnds

Remove the unused userspace LND code (all of lnet/ulnds/) and
supporting autocrud.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I104d8b22afdde5027a2a0ef1a9ecc0423b67fae5
Reviewed-on: http://review.whamcloud.com/12117
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Amir Shehata <amir.shehata@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>