title: Cookie::forget not working laravel 5.1
body: <p>I'm trying to get Laravel 5.1 to delete my cookie, however it will not delete even though i'm returning it with my redirect.</p>
  
  <pre><code>return redirect('/voucher')-&gt;withCookie(Cookie::forget($cookie));
  </code></pre>
  
  <p>Have I done something wrong?</p>