[Form] Fixed CS

src/Symfony/Bridge/Doctrine/Form/ChoiceList/IdReader.php

@@ -96,7 +96,7 @@ class IdReader
     public function getIdValue($object)
     {
         if (!$object) {
-            return null;
+            return;
         }
 
         if (!$this->om->contains($object)) {

src/Symfony/Component/Form/ChoiceList/Factory/CachingFactoryDecorator.php

@@ -14,7 +14,6 @@ namespace Symfony\Component\Form\ChoiceList\Factory;
 use Symfony\Component\Form\ChoiceList\ChoiceListInterface;
 use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 use Symfony\Component\Form\ChoiceList\View\ChoiceListView;
-use Symfony\Component\Form\Exception\UnexpectedTypeException;
 
 /**
  * Caches the choice lists created by the decorated factory.

src/Symfony/Component/Form/ChoiceList/Factory/DefaultChoiceListFactory.php

@@ -19,7 +19,6 @@ use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 use Symfony\Component\Form\ChoiceList\View\ChoiceGroupView;
 use Symfony\Component\Form\ChoiceList\View\ChoiceListView;
 use Symfony\Component\Form\ChoiceList\View\ChoiceView;
-use Symfony\Component\Form\Exception\UnexpectedTypeException;
 use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface as LegacyChoiceListInterface;
 
 /**

src/Symfony/Component/Form/ChoiceList/Factory/PropertyAccessDecorator.php

@@ -99,7 +99,7 @@ class PropertyAccessDecorator implements ChoiceListFactoryInterface
                     return $accessor->getValue($choice, $value);
                 }
 
-                return null;
+                return;
             };
         }