Remove unneeded comment (code is self-explanatory)

Author: johnslavik

Lib/traceback.py

@@ -1133,8 +1133,6 @@ def __init__(self, exc_type, exc_value, exc_traceback, *, limit=None,
             suggestion = _compute_suggestion_error(exc_value, exc_traceback, wrong_name)
             if suggestion:
                 if suggestion.isascii():
-                    # Prepending attribute accesses with a dot makes the message much clearer.
-                    # See GH-144285.
                     self._str += f". Did you mean '.{suggestion}' instead of '.{wrong_name}'?"
                 else:
                     self._str += f". Did you mean: '.{suggestion}' ({suggestion!a}) instead of '.{wrong_name}' ({wrong_name!a})?"