minor #34268 [WebProfilerBundle] Clean @internal annotations (fancyweb)

This PR was merged into the 5.0-dev branch.

Discussion
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[WebProfilerBundle] Clean @internal annotations

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Clean remaining `@internal` added by https://github.com/symfony/symfony/pull/32698

Commits
-------

7df469b [WebProfilerBundle] Clean @internal annotations

src/Symfony/Bundle/WebProfilerBundle/Controller/ProfilerController.php

@@ -27,7 +27,7 @@ use Twig\Environment;
 /**
  * @author Fabien Potencier <fabien@symfony.com>
  *
- * @internal since Symfony 4.4
+ * @internal
  */
 class ProfilerController
 {

src/Symfony/Bundle/WebProfilerBundle/Controller/RouterController.php

@@ -27,7 +27,7 @@ use Twig\Environment;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  *
- * @internal since Symfony 4.4
+ * @internal
  */
 class RouterController
 {

src/Symfony/Bundle/WebProfilerBundle/Profiler/TemplateManager.php

@@ -22,7 +22,7 @@ use Twig\Environment;
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Artur Wielogórski <wodor@wodor.net>
  *
- * @internal since Symfony 4.4
+ * @internal
  */
 class TemplateManager
 {