The flag is old and is disabled by default.

Change-Id: Ica1e4f3d7a9ec0e1130a8b097848251f9dc74ce0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2108727Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66777}