Move code to event handlers instead of registration routine.

app/Events/UserRegistration.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * UserRegistration.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Events;
+
+use FireflyIII\User;
+use Illuminate\Queue\SerializesModels;
+
+/**
+ * Class UserRegistration
+ *
+ * @package FireflyIII\Events
+ */
+class UserRegistration extends Event
+{
+    use SerializesModels;
+
+    public $ip;
+    public $user;
+
+    /**
+     * Create a new event instance.
+     *
+     * @param  User $user
+     *
+     * @return void
+     */
+    public function __construct(User $user, string $ip)
+    {
+        $this->user = $user;
+        $this->ip   = $ip;
+    }
+}