Also remove traces of array.new_sub

Bug: v8:7748
Change-Id: I96a922a16406960a80af0788e9cad5aa5692000a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2307237
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68956}