Retrieve the current layout option with Genesis

functions.php

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

/**
 * Retrieve the current layout option with Genesis
 *
 * @author Reasons to Use Genesis
 * @link http://reasonstousegenesis.com/get-layout/
 */
add_action( 'wp_head', 'rtug_site_layout_post_info' );
function rtug_site_layout_post_info() {

	if ( 'full-width-content' === genesis_site_layout() )
		add_filter( 'genesis_post_info', '__return_false' );

}