@Override
  public boolean deleteEntity(String entityName) throws IOException {
    return super.deleteEntity(entityName) && deleteURole(entityName);
  }
Delete a user's user file.

@param entityName The name of the user to be deleted.
@return True if the file is successfully deleted, false if the file does not exist.
@throws IOException when the file cannot be deleted.
iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/auth/user/LocalFileUserAccessor.java