Remove comment that Guido agree's doesn't make sense:

freddrake · freddrake · commit 145c26e3d31e · 2000-02-21T17:59:48.000Z
PyEval_EvalCode() is *not* a "backward compatible interface", it's the
one to use!
diff --git a/Python/ceval.c b/Python/ceval.c
@@ -313,8 +313,6 @@ static enum why_code do_raise Py_PROTO((PyObject *, PyObject *, PyObject *));
 static int unpack_sequence Py_PROTO((PyObject *, int, PyObject **));
 
 
-/* Backward compatible interface */
-
 PyObject *
 PyEval_EvalCode(co, globals, locals)
 	PyCodeObject *co;
