xfs: kill xfs_lrw.h

Move the two declarations to better fitting headers now that
xfs_lrw.c is gone.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
4 files changed