settings: don't read redundant label/sublabel text

Currently a cr-link-row is read like this:
  Label [text]
  Sublabel [text]
  Label, Sublabel [link]
where the first two elements are not interactable but are focusable.

After this change cr-link-row is read as simply:
  Label, Sublabel [link]

Bug: 954700
Change-Id: Ia49e4f414bc277e0482985e8cd60c0a23c57dafd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1707488
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Auto-Submit: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#678754}
1 file changed