fix rollback and windows build

rust/src/plant_hal.rs

@@ -159,7 +159,6 @@ pub struct PlantCtrlBoard<'a> {
         PinDriver<'a, esp_idf_hal::gpio::Gpio22, InputOutput>,
         PinDriver<'a, esp_idf_hal::gpio::Gpio19, InputOutput>,
     >,
-    low_voltage_detected: Mutex<bool>,
     tank_driver: AdcDriver<'a, esp_idf_hal::adc::ADC1>,
     tank_channel: esp_idf_hal::adc::AdcChannelDriver<'a, { attenuation::DB_11 }, Gpio39>,
     solar_is_day: PinDriver<'a, esp_idf_hal::gpio::Gpio25, esp_idf_hal::gpio::Input>,
@@ -963,8 +962,6 @@ impl CreatePlantHal<'_> for PlantHal {
         let nvs = EspDefaultNvsPartition::take()?;
         let wifi_driver = EspWifi::new(peripherals.modem, sys_loop, Some(nvs))?;
 
-        let low_voltage_detected = Mutex::new(unsafe { LOW_VOLTAGE_DETECTED });
-
         let adc_config = esp_idf_hal::adc::config::Config {
             resolution: esp_idf_hal::adc::config::Resolution::Resolution12Bit,
             calibration: true,
@@ -1001,7 +998,6 @@ impl CreatePlantHal<'_> for PlantHal {
         }
         let rv = Mutex::new(PlantCtrlBoard {
             shift_register,
-            low_voltage_detected,
             tank_driver,
             tank_channel,
             solar_is_day,