minor #1726 Do not call Reflection*::setAccessible() (W0rma)

This PR was merged into the 1.x branch.

Discussion
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Do not call Reflection*::setAccessible()

> As of PHP 8.1.0, calling this method has no effect; all methods are invokable by default.

(https://www.php.net/manual/en/reflectionmethod.setaccessible.php and https://www.php.net/manual/en/reflectionproperty.setaccessible.php).

There're even plans to deprecate the method in PHP 8.5: https://wiki.php.net/rfc/deprecations_php_8_5#extreflection_deprecations

Commits
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c55d785 Remove noop setAccessible() call

Author: javiereguiluz

src/Doctrine/DoctrineHelper.php

@@ -155,7 +155,6 @@ public function getMetadata(?string $classOrNamespace = null, bool $disconnected
                 if ($attributeDriver instanceof AttributeDriver) {
                     $classNames = (new \ReflectionClass(AttributeDriver::class))->getProperty('classNames');
 
-                    $classNames->setAccessible(true);
                     $classNames->setValue($attributeDriver, null);
                 }
             }