CI: remove comment-bot (pandas-dev#47416)

remove comment-bot

Author: MarcoGorelli

.github/workflows/comment_bot.yml

@@ -326,13 +326,7 @@ Autofixing formatting errors
 ----------------------------
 
 We use several styling checks (e.g. ``black``, ``flake8``, ``isort``) which are run after
-you make a pull request. If there is a scenario where any of these checks fail then you
-can comment::
-
-    @github-actions pre-commit
-
-on that pull request. This will trigger a workflow which will autofix formatting
-errors.
+you make a pull request.
 
 To automatically fix formatting errors on each commit you make, you can
 set up pre-commit yourself. First, create a Python :ref:`environment