Disable some screen option widgets

Hello,

Is it possible to disable some widgets/boxes on the edit pages such as custom fields?

I know I can do the following to disable widgets on the dashboard and was wondering whether there was something similar for the ones of the edit/add page views.

function remove_dashboard_widgets() {
	global $wp_meta_boxes;
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_recent_drafts']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);
}
add_action('wp_dashboard_setup', 'remove_dashboard_widgets');

Thanks in advance.

Dave.