[A11y] Remove AXListBox* classes

Bug: none
Change-Id: Ia34c3fd54b5d3b04fc47298078315d2eeacd70a0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5404551


Reviewed-by: Mark Schillaci <mschillaci@google.com>
Auto-Submit: Aaron Leventhal <aleventhal@chromium.org>
Commit-Queue: Aaron Leventhal <aleventhal@chromium.org>
Commit-Queue: Mark Schillaci <mschillaci@google.com>
Cr-Commit-Position: refs/heads/main@{#1280324}