code: def remove_user(username):
      
      users = passwd_reader.load_users()
  
      assert username in users, "Username '%s' not found!" % username
  
      # remove user from passwd file
      del users[username]
      passwd_reader.save_users(users)
  
      # remove home directory
      home_dir = settings.DATA_PATH + username
      if os.path.exists(home_dir):
          shutil.rmtree(home_dir)
  
      reload_configuration()
docs: Remove user, his home directory and so on..
  
      Args:
          username (str): User's name.