Suppression de JsonSerializer dans le use

Block/Widget/Image.php

@@ -14,7 +14,6 @@ use \NicolasBejean\MediaManager\Model\Image as ImageModel;
 use \NicolasBejean\MediaManager\Model\ImageRepository as ImageRepository;
 use \NicolasBejean\MediaManager\Model\ImageFactory;
 use \NicolasBejean\MediaManager\Model\Template\FilterProvider;
-use \Magento\Framework\Serialize\Serializer\Json as JsonSerializer;
 
 use \Exception;
 use \Magento\Framework\Exception\LocalizedException;