If i understand correctly you want to remove decoration tag to all your components except core components. In that case you can just add cq:noDecoration property to your component and set it to true. This will not the decoration tag to that particular component.
If i understand correctly you want to remove decoration tag to all your components except core components. In that case you can just add cq:noDecoration property to your component and set it to true. This will not the decoration tag to that particular component.