Revert fixture file

Author: Myks92

tests/Rules/Symfony/NoListenerWithoutContractRule/Fixture/SkipDoctrineListener.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Symplify\PHPStanRules\Tests\Rules\Symfony\NoListenerWithoutContractRule\Fixture;
+
+final class SkipDoctrineListener
+{
+    public function onFlush(\Doctrine\ODM\MongoDB\Event\OnFlushEventArgs $onFlushEventArgs)
+    {
+    }
+}