The A/B test that was turned on in T273554 is turned off.
Where "turned off" in this context means:
- New people are NOT being bucketed into test and control groups
- The people who had the Reply Tool enabled for them during the test will continue seeing and being able to use the tool
- The people who did NOT have the Reply Tool enabled for them during the test will continue seeing the existing, full-page wikitext talk page editing experience
- The Requirements above are implemented