A 10-minute job to remove them.
Pull/pry the black plastic pin-header casing off, and you are left with just the pins (forks).
Put the board in a vice, so you have both hands free.
Solder/pull the pins off one by one (don't use any force).
When all done, use a solder sucker to open the holes.
A temp controlled iron is a must.
Leo..