The flag had no effect and was removed from fuzzilli instructions here:
https://github.com/googleprojectzero/fuzzilli/commit/f31bfb7b5a3364e4cbcf7661f621fb5347521560

No-Try: true
Change-Id: If28e79fdf469a4cb665a83793c9fef8c6c2a8232
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2944431
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75000}