For the styles if its what I am thinking your talking about. Go to the template->default directory. Edit footer.tpl

Look for

Code
<form method="post" action="" name="prefs">
<input type="hidden" name="curl" value="{$current_url}" />
{$styles} {$langs}
</form>

I comment it out and looks like this

Code
<!--
<form method="post" action="" name="prefs">
<input type="hidden" name="curl" value="{$current_url}" />
{$styles} {$langs}
</form>
-->