don't write duplicate tests
diff --git a/Lib/test/test_extcall.py b/Lib/test/test_extcall.py
index 8f6629b..3eea121 100644
--- a/Lib/test/test_extcall.py
+++ b/Lib/test/test_extcall.py
@@ -272,8 +272,6 @@
     1 2
 """
 
-__test__ = {"extcall" : __doc__}
-
 import unittest
 import sys
 from test import test_support