LU-3240 llite: Do not send parent dir fid in getattr by fid

LU-3240 llite: Do not send parent dir fid in getattr by fid

Sending getattr by fid in this case is pointless, as the parent
might havelong changed and we have no control over it, but it's
irrelevant anyway, since we already have the child fid.

Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Change-Id: I8ea05e931cd85c126274b024a440137c309e5eb7
Reviewed-on: http://review.whamcloud.com/7910
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>