This snippet will deque FB analytics js file and prevent any ajax requests on checkout page

prevent_fb_analytics_on_checkout.php

/**
 * This snippet will deque FB analytics js file and prevent any ajax requests on checkout page
 */
add_action( 'wp_enqueue_scripts', function () {
    global $post;
	if ( 0 < did_action( 'wfacp_checkout_page_found' ) && 'XXXXX' == $post->ID ) {
		remove_action( 'wp_enqueue_scripts', array( WFFN_Core()->public, 'maybe_add_script' ) );

	}

}, 9 );