Remove unneccesary code in the example

The creation of types and add them to module may not be required in this example, since the example tries to highlight the use of exceptions.

Author: gdevanla

doc/sphinx/source/exceptions.rst

@@ -155,17 +155,11 @@ Often you need to create an Exception class that is specialised to a particular
     {
         PyObject* m;
 
-        noddy_NoddyType.tp_new = PyType_GenericNew;
-        if (PyType_Ready(&noddy_NoddyType) < 0)
-            return NULL;
-
         m = PyModule_Create(&noddymodule);
         if (m == NULL)
             return NULL;
 
-        Py_INCREF(&noddy_NoddyType);
-        PyModule_AddObject(m, "Noddy", (PyObject *)&noddy_NoddyType);
-        
+   
         /* Initialise exceptions here.
          *
          * Firstly a base class exception that inherits from the builtin Exception.