Paste the following piece of code into your functions.php file, save it and goodbye admin bar.
wp_deregister_script('admin-bar'); wp_deregister_style('admin-bar'); remove_action('wp_footer','wp_admin_bar_render',1000);
Thanks to Specky Boy for the tip!
Looking for WordPress hosting? Try WP Web Host. Prices starts at $5/month and you can try it for free!