Reply To: php function to remove page titles no longer working

This is the php code that worked for my site. Found at this resource –
http://wpsites.net/web-design/remove-titles-specific-conditions/

add_action( 'get_header', 'remove_titles_all_single_pages' );
function remove_titles_all_single_pages() {
    if ( is_singular('page') ) {
        remove_action( 'genesis_entry_header', 'genesis_do_post_title' );
    }
}