AFAIK you can just pull them off. You can try to get under the button with a card or guitar pick and then remove them. Maybe some sticky tape will help too.
Do you mean Sticky tape on the case to protect the paint?
No idea what AFAIK means dude…
I’ve read you need pliers and other times read guitar pick…
You can try to put the sticky tape on the button you want to remove and then raise the tape.
The button hopefully glues on the tape and gets removed. (not native english speaker, hope that makes sense)
A pliers would work as well.
afaik = as far as I know
edit: duct tape is the right term 
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