extra_css_js-8.x-1.1/extra_css_js.install

<?php

/**
 * @file
 * Installation file for Extra CSS JS Module
 */

function extra_css_js_uninstall() {
  // Delete active settings.
  $query = \Drupal::database()->delete('config');
  $query->condition('name', 'extra_css_js.settings');
  $query->execute();
  $query = \Drupal::database()->delete('key_value');
  $query->condition('name', 'extra_css_js');
  $query->execute();
}