bcachefs: Kill journal_seq/gc args to bch2_dev_usage_update_m()

This is only used by gc (fsck).

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-11-25 22:39:21 -05:00
commit 9e243d3cda