remove unneeded argument
diff --git a/Lib/dbhash.py b/Lib/dbhash.py
index 2179c14..601d69b 100644
--- a/Lib/dbhash.py
+++ b/Lib/dbhash.py
@@ -2,8 +2,7 @@
 
 import sys
 import warnings
-warnings.warnpy3k("in 3.x, the dbhash module has been removed",
-                  DeprecationWarning, 2)
+warnings.warnpy3k("in 3.x, the dbhash module has been removed", stackless=2)
 try:
     import bsddb
 except ImportError: