Revert "Inject Url Generator and Translator Interface into notification mailer (#2169)"

This was actually already present and functional, so adding additional code for it
is unnecessary.

This reverts commit e627616750c35e1ed70bcd7fa35d3ab147efe866.

src/Notification/NotificationMailer.php

@@ -9,11 +9,9 @@
 
 namespace Flarum\Notification;
 
-use Flarum\Http\UrlGenerator;
 use Flarum\User\User;
 use Illuminate\Contracts\Mail\Mailer;
 use Illuminate\Mail\Message;
-use Symfony\Component\Translation\TranslatorInterface;
 
 class NotificationMailer
 {
@@ -22,26 +20,12 @@ class NotificationMailer
      */
     protected $mailer;
 
-    /**
-     * @var TranslatorInterface
-     */
-    protected $translator;
-
-    /**
-     * @var UrlGenerator
-     */
-    protected $url;
-
     /**
      * @param Mailer $mailer
-     * @param TranslatorInterface $translator
-     * @param UrlGenerator $url
      */
-    public function __construct(Mailer $mailer, TranslatorInterface $translator, UrlGenerator $url)
+    public function __construct(Mailer $mailer)
     {
         $this->mailer = $mailer;
-        $this->translator = $translator;
-        $this->url = $url;
     }
 
     /**
@@ -50,11 +34,9 @@ class NotificationMailer
      */
     public function send(MailableInterface $blueprint, User $user)
     {
-        $translator = $this->translator;
-        $url = $this->url;
         $this->mailer->send(
             $blueprint->getEmailView(),
-            compact('blueprint', 'user', 'translator', 'url'),
+            compact('blueprint', 'user'),
             function (Message $message) use ($blueprint, $user) {
                 $message->to($user->email, $user->username)
                         ->subject($blueprint->getEmailSubject());