xfs: remove unused mp arg from xfs_dir2 dataptr/byte functions

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --cc fs/xfs/xfs_da_format.h
Simple merge

diff --cc fs/xfs/xfs_dir2_block.c
Simple merge

diff --cc fs/xfs/xfs_dir2_readdir.c
Simple merge