Powering the LoRaWAN-E5 Mini from external 3.3V supply

My application of the LoRaWAN-E5 Mini will power the device using an external 3.3V supply. The datasheet for U2, a AP2112 regulator, says it shorts its output to ground through a 30 ohm resistor when the input voltage is not applied. Will I have to remove U2?