xfs: remove unused structure members & simple typedefs

Remove some unused typedef'd simple types, and some unused
structure members.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
3 files changed