Update core 8.3.0

web/core/modules/automated_cron/automated_cron.module

@@ -34,14 +34,8 @@ function automated_cron_help($route_name, RouteMatchInterface $route_match) {
 function automated_cron_form_system_cron_settings_alter(&$form, &$form_state) {
   $automated_cron_settings = \Drupal::config('automated_cron.settings');
 
-  // Add automated cron settings.
-  $form['automated_cron'] = [
-    '#title' => t('Cron settings'),
-    '#type' => 'details',
-    '#open' => TRUE,
-  ];
   $options = [3600, 10800, 21600, 43200, 86400, 604800];
-  $form['automated_cron']['interval'] = [
+  $form['cron']['interval'] = [
     '#type' => 'select',
     '#title' => t('Run cron every'),
     '#description' => t('More information about setting up scheduled tasks can be found by <a href="@url">reading the cron tutorial on drupal.org</a>.', ['@url' => 'https://www.drupal.org/cron']),
@@ -49,13 +43,6 @@ function automated_cron_form_system_cron_settings_alter(&$form, &$form_state) {
     '#options' => [0 => t('Never')] + array_map([\Drupal::service('date.formatter'), 'formatInterval'], array_combine($options, $options)),
   ];
 
-  $form['actions']['#type'] = 'actions';
-  $form['actions']['submit'] = [
-    '#type' => 'submit',
-    '#value' => t('Save configuration'),
-    '#button_type' => 'primary',
-  ];
-
   // Add submit callback.
   $form['#submit'][] = 'automated_cron_settings_submit';
 
@@ -70,5 +57,4 @@ function automated_cron_settings_submit(array $form, FormStateInterface $form_st
   \Drupal::configFactory()->getEditable('automated_cron.settings')
     ->set('interval', $form_state->getValue('interval'))
     ->save();
-  drupal_set_message(t('The configuration options have been saved.'));
 }