Revert "在傻逼地球村这个完全可以忽略"

This reverts commit 492f62d6b3.

src/main.rs

@@ -44,14 +44,10 @@ async fn main() {
     let configuration = Configuration::new("config.json");
     let configuration_rc = Arc::new(configuration);
     let mut spam_file = None;
-    /*
-    在傻逼地球村中这个可以忽略了
     if configuration_rc.username_prefix().len() > 14 {
         error!("Error: Username prefix should not longer than 14");
         return;
     }
-
-     */
     if !configuration_rc.clone().spam_file().is_empty() {
         spam_file = Some(tokio::fs::File::open(configuration_rc.clone().spam_file()).await.unwrap());
     }