/**
* @param $form
* @param $form_state
*/
public function submitMigrateCleanupForm($form, FormStateInterface &$form_state)
{
$migration = $this->config('acquia_connector.settings')->get('cloud_migration');
$migration_class = new Migration();
$migration_class->cleanup($migration);
drupal_set_message($this->t('Temporary files removed'));
$form_state->setRedirect('acquia_connector.settings');
}