style: clean up.

src/time.rs

@@ -1,8 +1,7 @@
-use anyhow::bail;
 use embedded_svc::sys_time::SystemTime;
 use esp_idf_svc::sntp::{self, EspSntp};
 use esp_idf_svc::systime::EspSystemTime;
-use log::{warn, info};
+use log::{info};
 use std::time::{Duration};
 
 pub struct Time {