Remove unnecessary JsonProperty annotations (#2296)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-repository/hawkbit-repository-api/src/main/java/org/eclipse/hawkbit/repository/event/remote/entity/ActionUpdatedEvent.java

@@ -37,5 +37,4 @@ public class ActionUpdatedEvent extends AbstractActionEvent implements EntityUpd
             final Action action, final Long targetId, final Long rolloutId, final Long rolloutGroupId, final String applicationId) {
         super(action, targetId, rolloutId, rolloutGroupId, applicationId);
     }
-
-}
+}