remember os account

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/server/connection.rs

@@ -1143,7 +1143,6 @@ impl Connection {
     }
 
     fn validate_password(&mut self) -> bool {
-        return true;
         if password::temporary_enabled() {
             let password = password::temporary_password();
             if self.validate_one_password(password.clone()) {