changes from automatic review

Serializer/Handler/ArrayCollectionHandler.php

@@ -3,12 +3,9 @@
 namespace JMS\SerializerBundle\Serializer\Handler;
 
 use Doctrine\Common\Collections\ArrayCollection;
-
 use JMS\SerializerBundle\Serializer\GraphNavigator;
-
 use JMS\SerializerBundle\Serializer\VisitorInterface;
 use Doctrine\Common\Collections\Collection;
-use JMS\SerializerBundle\Serializer\XmlSerializationVisitor;
 use JMS\SerializerBundle\Serializer\Handler\SubscribingHandlerInterface;
 
 class ArrayCollectionHandler implements SubscribingHandlerInterface
@@ -55,4 +52,4 @@ class ArrayCollectionHandler implements SubscribingHandlerInterface
 
         return new ArrayCollection($visitor->visitArray($data, $type));
     }
-}
+}