Btrfs: raid56: remove redundant async_missing_raid56

async_missing_raid56() is identical to async_read_rebuild().

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
1 file changed