remove the --managed option

[Tony Lambregts]

Dustin Navea wrote:

>Actually, Alexandre decided to keep the Managed config
>option in, and with good reason... so we just need to
>update the docs to reflect that they can only use the
>Managed config option now.  There isn't a bug report,
>so if one does need to be created, yea go ahead...
>  
>
I added a comment to http://bugs.winehq.com/show_bug.cgi?id=84 It seemed 
more appropriate than starting a new bug.

Tony Lambregts