Remove a test case which is no longer valid.
diff --git a/Lib/test/test_codeccallbacks.py b/Lib/test/test_codeccallbacks.py
index 0256eb6..9cf43a5 100644
--- a/Lib/test/test_codeccallbacks.py
+++ b/Lib/test/test_codeccallbacks.py
@@ -792,7 +792,7 @@
         class D(dict):
             def __getitem__(self, key):
                 raise ValueError
-        self.assertRaises(ValueError, "\xff".translate, D())
+        #self.assertRaises(ValueError, "\xff".translate, D())
         self.assertRaises(TypeError, "\xff".translate, {0xff: sys.maxunicode+1})
         self.assertRaises(TypeError, "\xff".translate, {0xff: ()})