Get rid of Py_RETURN_NONE wrappers

[Jelmer Vernooij]

On Wed, Jan 08, 2014 at 03:52:26PM +0100, Matthias Dieter Wallnöfer wrote:
> This encouraged me to have a look at the various substituion macros
> which we have developed over time. And indeed, the Py_RETURN_NONE
> wrappers are not needed any longer
> (http://www.python.org/doc//current/c-api/none.html) - so I would
> strongly propose to remove them:
> https://git.samba.org/samba.git/?p=mdw/samba.git;a=commitdiff;h=62937731e052775c1541c17e89254ce7db7e06db
> 
Yeah, I agree these can be removed now.

Reviewed-By: Jelmer Vernooij <jelmer at samba.org>

Jelmer