They'll bash off with a hammer easily enough. Just don't be too hashy, you want to drive them past the screw, not chip bits off the edge. It's only a little screw head holding them on, the head of it will come off. Sometimes, if your Allen key/torx bit is slipping, you can loosen them by tapping them round with a centre punch to loosen the screw, but it's not worth the hassle.