GitLab

These were added in 2017 in https://crrev.com/c/720699, but the
input methods are not implemented yet. Removing these for now so we
only update description and naming for the ones in used.

Bug: None
Change-Id: I80422cf96ceb22f61158e51f68fa41455d4bbfae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2550334Reviewed-by: Darren Shen <shend@chromium.org>
Commit-Queue: My Nguyen <myy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830065}