Remove libraries dependency

The libraries module does not seem to be in use. It is not installed on new installations but there is an update hook installing this module.

<?php
/**
 * Install image_widget_crop module.
 */
function social_core_update_8003() {

  $modules = array(
    'libraries',
    'image_widget_crop',
  );
  \Drupal::service('module_installer')->install($modules);

}
?>

Lets remove the dependency.