Apply fixes from StyleCI

Author: StyleCIBot

tests/Broadcasting/BroadcasterTest.php

@@ -10,7 +10,6 @@
 use Illuminate\Http\Request;
 use Mockery as m;
 use PHPUnit\Framework\TestCase;
-use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 use Symfony\Component\HttpKernel\Exception\HttpException;
 
 class BroadcasterTest extends TestCase