LU-2748 fsfilt: ext4_map_inode_page in osd and ldisk out of sync

LU-2748 fsfilt: ext4_map_inode_page in osd and ldisk out of sync

The functon ext4_map_inode_page is mismatched in its use between
osd-ldiskfs and ldiskfs. The integer array is no longer used so
we remove its handling from the ldiskfs layer.

Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: I9b5522ce187f06983f328408cbcd0ce077e72ea1
Reviewed-on: http://review.whamcloud.com/5708
Tested-by: Hudson
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>