Clean up unused use statements

tests/lib/SimpleSAML/Utils/TranslateTest.php

@@ -4,11 +4,7 @@ declare(strict_types=1);
 
 namespace SimpleSAML\Test\Utils;
 
-use InvalidArgumentException;
-use org\bovigo\vfs\vfsStream;
-use org\bovigo\vfs\vfsStreamDirectory;
 use PHPUnit\Framework\TestCase;
-use ReflectionClass;
 use SimpleSAML\Configuration;
 use SimpleSAML\Error;
 use SimpleSAML\Utils;