Remove unused import

NO_BUG

Change-Id: Idadcf84f59b79efef9ca314316e81e18af772717
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5427822


Reviewed-by: Jong Ahn <jongahn@chromium.org>
Commit-Queue: Andrew Bregger <andrewbregger@google.com>
Cr-Commit-Position: refs/heads/main@{#1283398}