Snippets → WordPress
Hide help tab in WordPress dashboard
Add this to you functions.php to disable (or actually hide) the help tab from being displayed in WordPress dashboard.
function hide_help() {
echo '<style type="text/css">
#contextual-help-link-wrap { display: none !important; }
</style>';
}
add_action('admin_head', 'hide_help');
Source: http://wpsnipp.com/index.php/functions-php/disable-the-help-...