Remove White Space Between <li> Elements in a Genesis Menu

functions.php

<?php

/** 
 * Having `display: inline-block` works great as long as there isn't white space. 
 */
add_filter('genesis_do_nav', 'remove_whitespace');
function remove_whitespace( $str )
{
	$str = str_replace( "\r\n", "", $str );
	$str = str_replace( "\r", "", $str );
	$str = str_replace( "\n", "", $str );
	return $str;
}

?>