Fix styling

Author: sunchayn

src/Application/Formatters/JsonFormatter.php

@@ -3,7 +3,6 @@
 namespace Juampi92\Phecks\Application\Formatters;
 
 use Juampi92\Phecks\Application\Contracts\Formatter;
-use Juampi92\Phecks\Domain\Violations\Violation;
 use Juampi92\Phecks\Domain\Violations\ViolationsCollection;
 use Juampi92\Phecks\Domain\Violations\ViolationSeverity;
 use Symfony\Component\Console\Input\InputInterface;