This removes an include that was added unnecessarily in
https://crrev.com/c/1690960.

R=clemensh@chromium.org

Bug: v8:9396
Change-Id: I5cf7ae49b3a40b6665605af1db6b43b27aeb3a32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1692927Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62643}