How to remove Plulz Latest News from home page of the WP console?

Use screen options and remove the tik (V).

If you want to pop something in your functions.php file, try this:

function remove_PlulzDashNews_dashboard_metabox() {
    remove_meta_box('PlulzDashNews', 'dashboard', 'core');
}
add_action('admin_init', 'remove_PlulzDashNews_dashboard_metabox');