diff --git a/Lib/threading.py b/Lib/threading.py
index e29ee40adce..fd93f743335 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -35,10 +35,6 @@ del _thread
 
 
 # Debug support (adapted from ihooks.py).
-# All the major classes here derive from _Verbose.  We force that to
-# be a new-style class so that all the major classes here are new-style.
-# This helps debugging (type(instance) is more revealing for instances
-# of new-style classes).
 
 _VERBOSE = False