Remove or Edit in Feeds

1. Copy /wp-includes/feed-rss2.php to your theme folder

2. Edit it and make whatever changes you desire (e.g. removing the line for dc:creator)

3. in your theme’s functions.php file, add the following function:

remove_all_actions( 'do_feed_rss2' );  
function create_my_custom_feed() {  
    load_template( TEMPLATEPATH . '/feed-rss2.php');  
}  
add_action('do_feed_rss2', 'create_my_custom_feed', 10, 1);

---

Edit by Otto: While that will work, this would be a better way:

function create_my_custom_feed() {  
    load_template( TEMPLATEPATH . '/feed-rss2.php');  
}  
add_feed('rss2', 'create_my_custom_feed');

The add_feed() function is smart, and will handle the actions and such for you.

Note: It will require a one-time use of flush_rules() to take effect.