Have another plugin produce the breadcrumbs

functions.php

<?php
// Paste the code BELOW this line into your child theme functions.

/**
 * Have another plugin produce the breadcrumbs
 *
 * @author Reasons to Use Genesis
 * @link http://reasonstousegenesis.com/breadcrumbs/
 */
remove_action( 'genesis_before_loop', 'genesis_do_breadcrumbs' );
add_action( 'genesis_before_loop', 'rtug_breadcrumbs' );
function rtug_breadcrumbs() {

	// replace my_plugin_breadcrumbs with your breadcrumbs function
	if ( function_exists( 'my_plugin_breadcrumbs' ) )
		my_plugin_breadcrumbs();

}