Remove default style and class for menu

Hi!
I've uppgraded to version 4 of framework and notice that menucontrol is now able to render as <ul><li>, witch is perfect. But I notice that it adds a style element and set class for each node.
renderd page html
<style type="text/css"> /* <![CDATA[ */ #ctl00_ctl18_Mnavigation img.icon { border-style:none;vertical-align:middle; } #ctl00_ctl18_Mnavigation img.separator { border-style:none;display:block; } #ctl00_ctl18_Mnavigation img.horizontal-separator { border-style:none;vertical-align:middle; } #ctl00_ctl18_Mnavigation ul { list-style:none;margin:0;padding:0;width:auto; } #ctl00_ctl18_Mnavigation ul.dynamic { z-index:1; } #ctl00_ctl18_Mnavigation a { text-decoration:none;white-space:nowrap;display:block; } #ctl00_ctl18_Mnavigation a.static { padding-left:0.15em;padding-right:0.15em; } #ctl00_ctl18_Mnavigation a.popout-dynamic { background:url("/CopyHomeP ...