feature #28 Switch app.yaml to use autoconfigure (fabpot)

This PR was merged into the master branch.

Discussion
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Switch app.yaml to use autoconfigure

Commits
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c5f400b switched app.yaml to use autoconfigure

symfony/framework-bundle/3.3/etc/packages/app.yaml

@@ -1,25 +1,9 @@
 services:
     _defaults:
         autowire: true
+        autoconfigure: true
         public: false
 
-    _instanceof:
-        Symfony\Component\Console\Command\Command:
-            tags: ['console.command']
-            public: true
-
-        Twig_ExtensionInterface:
-            tags: ['twig.extension']
-
-        Symfony\Component\EventDispatcher\EventSubscriberInterface:
-            tags: ['kernel.event_subscriber']
-
-        Symfony\Component\Form\FormTypeInterface:
-            tags: ['form.type']
-
-        Symfony\Component\Security\Core\Authorization\VoterInterface:
-            tags: ['security.voter']
-
     App\:
         resource: '../../src/{Command,Form,EventSubscriber,Twig,Voter}'