docs: remove bytearray from supported types list.

docs/getting_started.rst

@@ -341,15 +341,13 @@ The following built-in types may be used as parameters or return values in
 remote procedure calls:
 
 * :class:`bool`
-* :class:`bytearray`
+* :func:`bytes` (:class:`str` on Python 2.x)
-* :func:`bytes`
 * :class:`dict`
 * :class:`int`
 * :func:`list`
 * :class:`long`
-* :class:`str`
 * :func:`tuple`
-* :func:`unicode`
+* :func:`unicode` (:class:`str` on Python 3.x)
 
 User-defined types may not be used, except for: