bcachefs: Delete a spurious assertion

bch_write_op->written used to be a u16, but it's not so the assertion
isn't needed anymore - and 5.1 can send larger bios.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-06-27 11:37:46 -04:00 • committed by Kent Overstreet
commit 09bf409b46