The counter is dead since August 2017 (https://crrev.com/c/633703).
The corresponding chromium histogram is removed in
https://crrev.com/c/1514812.

R=titzer@chromium.org

Bug: v8:8975
Change-Id: I6fa457018deb25cfd36d7de660fcfe996902c811
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1514737Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60185}