clippy fixed

Software/MainBoard/rust/src/plant_state.rs

@@ -287,7 +287,7 @@ impl PlantState {
     /// - Tuple of errors from sensor A and B
     /// - Sensor warning indicating if warning LED should be lit (MissingSecondSensor)
     pub fn plant_moisture_with_warning(&self, plant_conf: &PlantConfig) -> Option<f32> {
-        let moisture = match (
+        match (
             self.sensor_a.moisture_percent(),
             self.sensor_b.moisture_percent(),
         ) {
@@ -299,9 +299,7 @@ impl PlantState {
             (Some(moisture), _) => Some(moisture),
             (_, Some(moisture)) => Some(moisture),
             _ => None,
-        };
-
-        moisture
+        }
     }
 
     pub fn needs_to_be_watered(