LU-2675 lnet: remove unnecessary goto

LU-2675 lnet: remove unnecessary goto

The 'out' label and the goto's in brw_client_done_rpc()
are no longer needed, since the user space code has been
removed.

Change-Id: I0f478de2778ec25eea9f7adbd08f4caf0a29668e
Signed-off-by: Isaac Huang <he.huang@intel.com>
Reviewed-on: http://review.whamcloud.com/13698
Tested-by: Jenkins
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>