remove time_utils mod

Author: joelsa

Cargo.lock

@@ -11,3 +11,4 @@ ctrlc = "3.4"
 ratatui = "0.29"
 serialport = "4.3"
 tokio = { version = "1.0", features = ["rt-multi-thread", "sync", "time", "macros"] }
+chrono = { version = "0.4", features = ["serde"] }

Cargo.toml

@@ -2,7 +2,6 @@ mod config;
 mod logging;
 mod port_discovery;
 mod serial_io;
-mod time_utils;
 mod ui;
 
 use anyhow::{Context, Result};