Sprout Invoices Plugin/Theme Compatibility Example

functions.php

<?php

/**
 * Remove wp_footer hooks from an incompatible plugins and/or themes
 */
function remove_wp_footer_actions() {
	if ( is_single() && ( SI_Invoice::is_invoice_query() || SI_Estimate::is_estimate_query() ) ) {
		// plugins usually hook on the default priority, also 
		// core doesn't add anything on priority 10 so 
		// we can assume all hooks are from plugins and themes.
		remove_all_actions( 'wp_footer', 10 );
	}	
}
add_action( 'template_redirect', 'remove_wp_footer_actions' );