Remove unused parameter documentation and flash message in ContactEventHandler and IndexAction.

Author: terabytesoftw

src/framework/event/ContactEventHandler.php

@@ -10,9 +10,6 @@
 
 final class ContactEventHandler implements BootstrapInterface
 {
-    /**
-     * @param \yii\base\Application $app
-     */
     public function bootstrap($app): void
     {
         Event::on(

src/usecase/contact/IndexAction.php

@@ -32,8 +32,6 @@ public function run(): string
 
         if (is_array($post) && $contactForm->load($post) && $contactForm->validate()) {
             if ($contactForm->sendContact($this->mailer, $this->controller->module->params)) {
-                $this->session->setFlash('contactFormSubmitted');
-
                 $this->trigger(ContactEvent::EVENT_AFTER_SEND, new ContactEvent());
             }
         }