discardChargingRequested

Discards a request to start charge an electric vehicle using startCharging. In addition, this function discards the request to start charging an electric vehicle from user that has not yet been processed by the eMSPs. This function has no effect once the user has plugged in the charging cable to the vehicle. Should be called when the vehicle is waiting for charging cable to be plugged in and user has interacted with UI to abandon the start charging request process.