bcachefs: Kill btree_iter_peek_uptodate()

Since we're no longer doing next() immediately followed by peek(), this
optimization isn't doing anything anymore.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-03-21 17:01:34 -04:00 • committed by Kent Overstreet
commit 07fc72e103