<?php

// Remove the Masonry script used for the footer in Twenty Thirteen
function openmedia_dequeue_masonry() {
	wp_dequeue_script( 'jquery-masonry' );
}
add_action( 'wp_print_scripts', 'openmedia_dequeue_masonry' );

Remove the Masonry lib used in Twenty-Thirteen
Remove the Masonry lib used in Twenty-Thirteen

It seems an overkill to use this lib for a footer with just a couple of
widgets and it even makes laying them out harder.

Followed the instructions here to deactivate it:
http://slobodanmanic.com/444/flexible-horizontal-sidebars-wordpress-twenty-thirteen-child-theme/