NewTuple3 is not used anywhere in the source code.

Bug: v8:9714
Change-Id: Iac3b3c17eafa01f5bb3de12a50afb4da0215e923
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1801843
Commit-Queue: Victor Gomes <victorgomes@google.com>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63746}