How to remove the comments feed from WP 3.1.1?

Question

remove_action('wp_head', 'feed_links', 2); 
add_action('wp_head', 'my_feed_links');

function my_feed_links() {
  if ( !current_theme_supports('automatic-feed-links') ) return;

  // post feed 
  ?>
  <link rel="alternate" type="<?php echo feed_content_type(); ?>" 
        title="<?php printf(__('%1$s %2$s Feed'), get_bloginfo('name'), ' &raquo; '); ?>"
        href="https://wordpress.stackexchange.com/questions/20654/<?php echo get_feed_link(); ?>" />
  <?php 
}