去除重复代码

vnt-cli/build.rs

@@ -1,16 +0,0 @@
-use rand::Rng;
-use std::fs::File;
-use std::io::Write;
-
-fn main() {
-    let now_time = chrono::Local::now();
-    let serial_number = format!(
-        "{}-{}",
-        &now_time.format("%y%m%d%H%M").to_string(),
-        rand::thread_rng().gen_range(100..1000)
-    );
-    let generated_code = format!(r#"pub const SERIAL_NUMBER: &str = "{}";"#, serial_number);
-    let dest_path = "src/generated_serial_number.rs";
-    let mut file = File::create(&dest_path).unwrap();
-    file.write_all(generated_code.as_bytes()).unwrap();
-}