Btrfs: cleanup unused arguments

'disk_key' is not used at all.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Liu Bo 2012-10-19 12:52:15 +00:00 • committed by Josef Bacik
commit 32adf09013