To delete widgets on a WordPress site, follow these steps:
1. Login to the WordPress admin dashboard.
2. Go to Appearance > Widgets.
3. Locate the widget you want to delete and click on it to open.
4. If there is a delete button in the widget settings, click on it.
5. Otherwise, remove the widget by clicking the right arrow to expand the widget, then clicking the Delete button.
6. Click the Save button to apply the changes.
7. Refresh your website to confirm whether the widget has been removed or not.