GitLab

Remove unused method signatures
Fix a comment

Change-Id: Idf191b76b3e2c2495a7ff3e31d16629c086d87e2
Reviewed-on: https://chromium-review.googlesource.com/847971Reviewed-by: Jinsuk Kim <jinsukkim@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#526564}