GitLab

Remove some unused CLASSES and move the remaining one to the file it's
actually used in. Set the text label via replacements instead of in
javascript.

Bug: None
Change-Id: I72896252332507854930ad2aa6a682f2ff81495d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715108Reviewed-by: Gayane Petrosyan <gayane@chromium.org>
Commit-Queue: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680123}