I do not want my wp blog to print RSS/Atom Feed urls in html. One way to do it is to comment following lines in wp-includes/default-filters.php
add_action( 'wp_head', 'feed_links', 2 );
add_action( 'wp_head', 'feed_links_extra', 3 );
But problem here is that if I upldate WP using dashboard I may loose these changes. Is there a way to stop WP printing these Feed URLs?
It is not a solution anyway, never change core files.
Use this code in your in
wp-content/themes/{your theme}/functions.php