<p>When beginning a new web project, i'm always a bit worried about removing pieces of the web.config.  It seems there are more entries than ever with Net 3.5 SP1.</p>

<p>Which bits of the .config do you delete for the following scenarios:</p>

<ul>
<li>WCF Web Service, no Javascript support</li>
<li>Simple MVC Website</li>
</ul>

<p>EDIT
Can someone document a basic list of things left in and taken out of the web.config for a simple website?</p>

I usually just delete items from the web.config until things break -- a process of trial and error.
It's astonishing how much of web.config you can remove without affecting anything. It's gotten quite crufty in .NET 3.5.