remove py3k warning for callable

Misc/NEWS

@@ -9,6 +9,8 @@ What's New in Python 2.7.3?
 Core and Builtins
 -----------------
 
+- Remove Py3k warning for callable.
+
 - Issue #13340: Accept None as start and stop parameters for
   list.index() and tuple.index().
 

Python/bltinmodule.c

@@ -224,9 +224,6 @@ Return the binary representation of an integer or long integer.");
 static PyObject *
 builtin_callable(PyObject *self, PyObject *v)
 {
-    if (PyErr_WarnPy3k("callable() not supported in 3.1; "
-                       "use isinstance(x, collections.Callable)", 1) < 0)
-        return NULL;
     return PyBool_FromLong((long)PyCallable_Check(v));
 }