style: clean up.

src/dc_out_controller.rs

@@ -12,7 +12,7 @@ use esp_idf_svc::eventloop::{
     EspSubscription, EspTypedEventDeserializer, EspTypedEventSerializer, EspTypedEventSource, User,
 };
 use esp_idf_sys::c_types;
-use log::{info, warn, debug};
+use log::{warn};
 use serde_json::json;
 
 use crate::voltage_detection::{VoltageDetectionWorker, VOLTAGE_EVENTLOOP};