galleryslider-8.x-3.1/galleryslider.install

<?php

/**
 * @file
 * Contains galleryslider.install.
 */

/**
 * Implements hook_uninstall() for image.style.galleryslider.yml.
 */
function galleryslider_uninstall() {

  /** @var \Drupal\Core\Config\ConfigFactoryInterface $configFactory */
  $configFactory = \Drupal::configFactory();
  $logger = \Drupal::logger('amp');

  $configNames = [
    'image.style.galleryslider',
  ];

  foreach ($configNames as $configName) {
    try {
      $configFactory->getEditable($configName)->delete();
    }
    catch (\Exception $e) {
      $logger->warning(sprintf('Unable to uninstall config: %s.', $configName));
    }
  }
}