Issue #20574: Remove duplicated test failing on Windows XP
diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py
index 34a064c..6945a99 100644
--- a/Lib/test/test_codecs.py
+++ b/Lib/test/test_codecs.py
@@ -2879,11 +2879,5 @@
         self.assertEqual(decoded, ('abc', 3))
 
 
-@unittest.skipUnless(sys.platform == 'win32',
-                     'cp65001 is specific to Windows')
-class CP65001Test(UTF8Test, unittest.TestCase):
-    encoding = "cp65001"
-
-
 if __name__ == "__main__":
     unittest.main()