Include reactive label removers

What does this MR do and why?

Includes the processors that were implemented in !1163 (merged) in the handler.

Expected impact & dry-runs

These are strongly recommended to assist reviewers and reduce the time to merge your change.

Action items

• N/A (If applicable) Add documentation to the handbook pages for Triage Operations =>
• (If applicable) Identify the affected groups and how to communicate to them:
  • N/A /cc @person_or_group =>
  • N/A Relevant Slack channels =>
  • N/A Engineering week-in-review