Walker_Menu_Class outputting only plain anchor links.

gistfile1.aw

<?php 
class Stripped_Walker_Nav_Menu extends Walker_Nav_Menu {
	function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
		global $wp_query, $post;
		
		$indent = ($depth) ? str_repeat("\t", $depth) : '';
		
		$class_names = $value = '';
		
		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
		$classes[] = 'menu-item-' . $item->ID;
		
		if(is_object($post)) {
			$post_type = get_post_type($post->ID);
			$active_post_type = get_post_meta($item->object_id, 'menu_post_type', true);
			
			if($post_type == $active_post_type || ($post_type == 'post' && rtrim($item->url, '/') == rtrim(get_bloginfo('url'), '/'))) {
				$classes[] = 'current_page_item';
			}
		}
		
		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
		$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
		
		$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
		$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
		
		$attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
		$attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
		$attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
		$attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';
		
		$item_output = $args->before;
		$item_output .= '<a' . $id . $value . $class_names . $attributes .'>';
		$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
		$item_output .= '</a>';
		$item_output .= $args->after;
		
		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
	}
	
	function end_el(&$output, $item, $depth) {}
	function start_lvl(&$output, $depth) {}
	function end_lvl(&$output, $depth) {}
}

function stripped_remove_list($nav_menu) {
	return preg_replace('/<\/?ul(.?||.+?)>/i', '', $nav_menu);
}
add_filter('wp_nav_menu', 'stripped_remove_list');
?>