Hi looking for some advise...while decorating plaster has come away from the concrete internal lintal above a upvc window. It has revealed that there is on row of bricks just sitting along the top of the window frame.. I was going to replace the plaster with plasterboard push under the bricks to support and then skim over. But my question is do the bricks need to be there? As far as I can see there not doing anything and are not visible from the out side as the top of the frame meets the soffit...hopefully the pics I have added will explain more. Thanks