Un-doing last 2 committs about invoices

airtime_mvc/application/controllers/BillingController.php

@@ -165,13 +165,7 @@ class BillingController extends Zend_Controller_Action {
                         Billing::addVatToInvoice($result["invoiceid"]);
                     }
 
-                    // invoice id can be 0 if client is downgrading and they don't
-                    // owe any money
-                    if (!empty($result["invoiceid"])) {
                     self::viewInvoice($result["invoiceid"]);
-                    } else {
-                        $this->view->form = $form;
-                    }
                 }
             } else {
                 $this->view->form = $form;