Remove incorrect assert in CommandLineUtil

This code may be accessed before the UI thread is initialized.

Bug: 940566
Change-Id: I47deb0f64db38aa0243ee3b7ec07ccc8c87e2937
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1515899
Commit-Queue: Ian Vollick <vollick@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Auto-Submit: Ian Vollick <vollick@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639742}
1 file changed