title: How to disable registration new user in Laravel 5.6
body: <p>I use laravel 5.6 </p>
  
  <p>I want to disable registration for new users, of course the login form must work</p>
  
  <p>I see below question :</p>
  
  <pre><code>https://stackoverflow.com/questions/29183348/how-to-disable-registration-new-user-in-laravel-5
  </code></pre>
  
  <p>But I did not find the ‍‍<code>showRegistrationForm()</code> function on the following path:</p>
  
  <p><code>Auth/RegisterController.php</code></p>