EX-2240 lipe: remove fake lustre headers

EX-2240 lipe: remove fake lustre headers

The fake lustre headers should be removed and we should include
normal lustre headers instead. The two headers are fake_lustre_idl.h
and fake_lustre_disk.h. Including the fake headers makes it harder
to include other lustre headers due to conflicts.

Test-Parameters: testlist=sanity-lipe

Change-Id: I95d6b50c9f9fd9f675eceba00464053124b7279c
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/44897
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>