Issue #21741: Update 147 test modules to use test discovery.

I have compared output between pre- and post-patch runs of these tests
to make sure there's nothing missing and nothing broken, on both
Windows and Linux.  The only differences I found were actually tests
that were previously *not* run.

1 files changed, 2 insertions, 6 deletions

diff --git a/Lib/test/test_pep3120.py b/Lib/test/test_pep3120.py
index 5b63998..97dced8 100644
--- a/Lib/test/test_pep3120.py
+++ b/Lib/test/test_pep3120.py
@@ -1,7 +1,6 @@
 # This file is marked as binary in the CVS, to prevent MacCVS from recoding it.
 
 import unittest
-from test import support
 
 class PEP3120Test(unittest.TestCase):
 
@@ -40,8 +39,5 @@ class BuiltinCompileTests(unittest.TestCase):
         self.assertEqual('Ç', ns['u'])
 
 
-def test_main():
-    support.run_unittest(PEP3120Test, BuiltinCompileTests)
-
-if __name__=="__main__":
-    test_main()
+if __name__ == "__main__":
+    unittest.main()