All the flags are in place and we can disable the slow histogram to
fix the expected regression we see on the perf bots.

Bug: v8:11946, chromium:1238515
Change-Id: I063582b4dede32bf90b5d5d94ba3a9dfd9f56718
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3089155
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76245}