xfs: remove xfs_bunmapi_cow

Source kernel commit: 64e6428ddd00f864e3ca105f914a2b6920c2bc41

Since no one uses it anymore.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

2 files changed