[led] replace TODO with a bug.
[led] replace TODO with a bug.

This isn't much, but I can do this little with a bug triage.

R=iannucci

Change-Id: I33635e2016971cc2691b3de98f2f2e3e5f09e32c
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/2912727
Auto-Submit: Andrii Shyshkalov <a30c74fa30536fe7ea81ed6dec202e35e149e1fd@google.com>
Commit-Queue: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>
Reviewed-by: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go