Merge branch '4.1'

* 4.1:
  [DI] align IniFileLoader to PHP bugfix #76965
  Remove unused dependency

Author: nicolas-grekas

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -50,7 +50,6 @@
 use Symfony\Component\Serializer\Serializer;
 use Symfony\Component\Translation\DependencyInjection\TranslatorPass;
 use Symfony\Component\Validator\DependencyInjection\AddConstraintValidatorsPass;
-use Symfony\Component\Validator\Validation;
 use Symfony\Component\Workflow;
 
 abstract class FrameworkExtensionTest extends TestCase