Revert "NGSTACK-1000 add missing 'FieldHelper' property to 'Image' class config"

This reverts commit 7c644ab.

Author: AntePrkacin

bundle/Resources/config/handlers.yaml

@@ -58,7 +58,6 @@ services:
         class: Netgen\Bundle\OpenGraphBundle\Handler\FieldType\Image
         parent: netgen_open_graph.handler.field_type.abstract
         arguments:
-            - "@Ibexa\\Core\\Helper\\FieldHelper"
             - "@Ibexa\\Contracts\\Core\\Variation\\VariationHandler"
             - "@request_stack"
             - "@?logger"