Hide Some Fields of Post Submit box

Add this code on function.php

function wpseNoVisibility() {
  echo '<style>div#visibility.misc-pub-section.misc-pub-visibility{display:none}</style>';
}

function wpseCurrentScreenAction($current_screen) {
    if ('page' == $current_screen->post_type && 'post' == $current_screen->base) {
        add_action('admin_head', 'wpseNoVisibility');
    }
}

add_action('current_screen', 'wpseCurrentScreenAction');

Source – Original Source