Not sure that's a Resistor, it's more likely a Ferrite Bead, and it's on the 5v External rail. It will not have any effect on the controller working at all, but it will not charge in a charging station thru that External jack now. If you want to restore that function, just jumper it back closed with solder or a small wire. If you don't ever plan to toss it in a charging station, the it can just stay like that forever.