Fix Manager extends test, which previously duplicated Query

Author: jmikola

tests/manager/manager_error-001.phpt

@@ -1,15 +1,12 @@
 --TEST--
-MongoDB\Driver\Query cannot be extended
---SKIPIF--
-<?php require __DIR__ . "/../utils/basic-skipif.inc"?>
+MongoDB\Driver\Manager cannot be extended
 --FILE--
 <?php
-require_once __DIR__ . "/../utils/basic.inc";
 
-class MyQuery extends MongoDB\Driver\Query {}
+class MyManager extends MongoDB\Driver\Manager {}
 
 ?>
 ===DONE===
 <?php exit(0); ?>
 --EXPECTF--
-Fatal error: Class MyQuery may not inherit from final class (MongoDB\Driver\Query) in %s on line %d
+Fatal error: Class MyManager may not inherit from final class (MongoDB\Driver\Manager) in %s on line %d