remove bad error checks

main/ugv_io_gps.cc

@@ -89,10 +89,8 @@ void UART_GPS::GetData(GpsData &data) {
 
 esp_err_t UART_GPS::WriteCommand(const char *cmd, size_t len) {
   esp_err_t ret;
-  ret = uart_write_bytes(GPS_UART, cmd, len);
-  if (ret != ESP_OK) goto err;
-  ret = uart_write_bytes(GPS_UART, NMEA_END_CMD, sizeof(NMEA_END_CMD));
-  if (ret != ESP_OK) goto err;
+  uart_write_bytes(GPS_UART, cmd, len);
+  uart_write_bytes(GPS_UART, NMEA_END_CMD, sizeof(NMEA_END_CMD));
   ret = uart_wait_tx_done(GPS_UART, 1000);
   if (ret != ESP_OK) goto err;