wp_head – style removal

Using twenty eleven, the last thing wp_head outputs looks like this:

<style type="text/css">
	#site-title,
	#site-description {
		position: absolute !important;
		clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
		clip: rect(1px, 1px, 1px, 1px);
	}
</style>

What action generates this, and can it be filtered similar to this?
remove_action('wp_head', 'wp_generator');

I don’t need that style info. Thanks for any help.