[TYPO3] removing included css

[Alix Justus]

Hi,
i installd typo3+dummy pakkage for my new website, i made a website buy
folowing basic tutorial Modern template building part 1, i just copy and
paste the typoscript, and it works fine evrythink. I just want to disable
the default included css file and also remove the developer tekst.

<!--
       This website is powered by TYPO3 - inspiring people to share!
       TYPO3 is a free open source Content Management Framework initially
created by Kasper Skaarhoj and licensed under GNU/GPL.
       TYPO3 is copyright 1998-2008 of Kasper Skaarhoj. Extensions are
copyright of their respective owners.
       Information and contribution at http://typo3.com/ and
http://typo3.org/
-->

       <link rel="stylesheet" type="text/css"
href="typo3temp/stylesheet_0215ea43e2.css" />
       <title>Root page</title>
       <meta name="generator" content="TYPO3 4.2 CMS" />
       <script type="text/javascript"
src="typo3temp/javascript_93077bb238.js"></script>