bug #37154 [FrameworkBundle] Remove reference to APP_SECRET in MicroK…

…ernelTrait (nicolas-grekas)

This PR was merged into the 5.1 branch.

Discussion
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[FrameworkBundle] Remove reference to APP_SECRET in MicroKernelTrait

| Q             | A
| ------------- | ---
| Branch?       | 5.1
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | #37123
| License       | MIT
| Doc PR        | -

Needs symfony/recipes#781

Commits
-------

bf0b48a [FrameworkBundle] Remove reference to APP_SECRET in MicroKernelTrait

src/Symfony/Bundle/FrameworkBundle/Kernel/MicroKernelTrait.php

@@ -83,7 +83,6 @@ public function registerContainerConfiguration(LoaderInterface $loader)
     {
         $loader->load(function (ContainerBuilder $container) use ($loader) {
             $container->loadFromExtension('framework', [
-                'secret' => '%env(APP_SECRET)%',
                 'router' => [
                     'resource' => 'kernel::loadRoutes',
                     'type' => 'service',