Drupal custom module - How to disable 'promote to front page' and 'sticky' options?

drupal.module

<?php 

/**
 * Use hook_form_alter to unset both options on node edit forms. 
 * But on the main admin content page, the options still appear under 'Update options' dropdown.
 */

/**
 * Implements hook_form_alter().
 * This is remove the promote to frontpage, and make sticky options from node edit pages
 */
function alter_drupal_form_alter(&$form, &$form_state, $form_id) {
  if (strpos($form_id, '_node_form') !== FALSE) {
    unset($form['options']['sticky']);
    unset($form['options']['promote']);
  }

  if (strpos($form_id, 'node_admin_content') !== FALSE) {
    //$opt[''] = '- Select -';
    $opt['publish'] = 'Publish selected content'; 
    $opt['unpublish'] = 'Unpublish selected content'; 
    $opt['delete'] = 'Delete selected content'; 
    $opt['pathauto_update_alias'] = 'Update URL alias'; 
    $form['admin']['options']['operation']['#options'] = $opt;


    // print_r($form['admin']['options']['operation']['#options']);
  }
}

In drupal 8/9/10, instead of unset, the following works:

$form['sticky']['#access'] = FALSE;
$form['promote']['#access'] = FALSE;

In drupal 8/9/10, instead of unset, the following works:

$form['sticky']['#access'] = FALSE; $form['promote']['#access'] = FALSE;

Thanks for the tips