Hello Dclin, , I understand your request, but the power button as such cannot be removed. It is soldered into the motherboard.
There is a plastic button in the chassis that makes contact with the on board power switch and reflects the blue light, that can be removed from the chassis but it is not a recommended practice.
To remove that plastic button it is necessary to break the retention pieces of the top black plastic cover and that voids the warranty of the unit.
That's what I suspected.