Simplified WordPress Nav

wp-nav-simplified.php

<?php    
    $defaults = array(
        'theme_location'    => 'primary-menu',
        'container'         => 'nav', 
        'container_class'   => 'primary-nav', 
        'echo'              => false,
        'fallback_cb'       => false,
        'items_wrap'        => '%3$s',
        'depth'             => 0
    );
    echo strip_tags(wp_nav_menu( $defaults ), '<nav><a>');
?>

Removes ul and li markup

<nav class="primary-nav">
    <a href="#">LINK</a>
    …
</nav>