- Revert a change that should have been blocked: py3k has no -3 flag!

- also remove a bogus debug print

Lib/test/regrtest.py

@@ -1157,14 +1157,6 @@ class _ExpectedSkips:
             if sys.platform != 'sunos5':
                 self.expected.add('test_nis')
 
-            # TODO: This is a hack to raise TestSkipped if -3 is not enabled.
-            # Instead of relying on callable to have a warning, we should expose
-            # the -3 flag to Python code somehow
-            with test_support.catch_warning() as w:
-                callable(int)
-                if w.message is None:
-                    self.expected.add('test_py3kwarn')
-
             self.valid = True
 
     def isvalid(self):