public function update_8009001() {
    $project_yml = $this->updater->getProjectYml();
    unset($project_yml['phpcs']['filesets']['files.php.custom.modules']);
    unset($project_yml['phpcs']['filesets']['files.php.custom.themes']);
    unset($project_yml['phpcs']['filesets']['files.php.tests']);
    $this->updater->writeProjectYml($project_yml);
  }