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After recent refactoring, this class isn't needed anymore!

Change-Id: Ib2e4b5c4420ccea6d949d2bfc9fa3d897768b7d5
Bug: 949519
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1823875
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: Vadym Doroshenko <dvadym@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700140}