Woops, test_sndhdr.py contains the same code twice: fix it
diff --git a/Lib/test/test_sndhdr.py b/Lib/test/test_sndhdr.py
index 4b4c857..1004688 100644
--- a/Lib/test/test_sndhdr.py
+++ b/Lib/test/test_sndhdr.py
@@ -21,27 +21,3 @@
 
 if __name__ == '__main__':
     unittest.main()
-
-import sndhdr
-import unittest
-from test.support import findfile
-
-class TestFormats(unittest.TestCase):
-    def test_data(self):
-        for filename, expected in (
-            ('sndhdr.8svx', ('8svx', 0, 1, 0, 8)),
-            ('sndhdr.aifc', ('aifc', 44100, 2, 5, 16)),
-            ('sndhdr.aiff', ('aiff', 44100, 2, 5, 16)),
-            ('sndhdr.au', ('au', 44100, 2, 5.0, 16)),
-            ('sndhdr.hcom', ('hcom', 22050.0, 1, -1, 8)),
-            ('sndhdr.sndt', ('sndt', 44100, 1, 5, 8)),
-            ('sndhdr.voc', ('voc', 0, 1, -1, 8)),
-            ('sndhdr.wav', ('wav', 44100, 2, -1, 16)),
-        ):
-            filename = findfile(filename, subdir="sndhdrdata")
-            what = sndhdr.what(filename)
-            self.assertNotEqual(what, None, filename)
-            self.assertSequenceEqual(what, expected)
-
-if __name__ == '__main__':
-    unittest.main()