Activity

Dear Support team, could you please advise how to delete or update name of item in admin bar. I try to delete “Activity” but nothing happen:

add_action( ‘admin_bar_menu’, ‘remove_activity’, 999 );

function remove_activity( $wp_admin_bar ) {
$wp_admin_bar->remove_node( ‘activity’ );
}

Appreciate your help.
Thank you
Anton