How to remove trailing tags from wp_nav_menu walker

just been reading an article on removing <li> elements from wp_nav_menu (http://css-tricks.com/snippets/wordpress/remove-li-elements-from-output-of-wp_nav_menu/) and the code suggested is

$menuParameters = array(
  'container'       => false,
  'echo'            => false,
  'items_wrap'      => '%3$s',
  'depth'           => 0,
);

echo strip_tags(wp_nav_menu( $menuParameters ), '<a>' );

have you tried this ?