Fix codestyle

Author: nickygerritsen

webapp/src/DataFixtures/Test/NonSortOrderTeamCategoryFixture.php

@@ -1,8 +1,7 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace App\DataFixtures\Test;
 
-use App\Entity\Problem;
 use App\Entity\TeamCategory;
 use Doctrine\Persistence\ObjectManager;