bcachefs: Remove the prev array stuff

After reducing the search range when building the aux tree, the prev array
stuff is no longer useful, so remove it.

Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Alan Huang 2024-08-12 17:04:04 +08:00 • committed by Kent Overstreet
commit 3130303bd9