How to remove Throttle Positioning Sensor???

I have an 88 Honda Civic 1.5L I need to replace the Throttle Positioning sensor on it. But it has some safety nut holding it on normally it’s a Phillips screw I can’t figure any way to remove this? Any help would be great. Thanks

You have the stock bolts still in it. Take a chisel and a hammer and start hammering in the direction to take the bolt out....or take a dremel tool and cut a slot in the bolt and use a flat head to remove.