Remove All Avatars

If you delete the plugin through the Dashboard, it will remove all database entries associated with the plugin. However, it won’t delete the images because they may be used elsewhere in your site and not just as avatars. If you want to delete the images yourself, you can go to the Library view (https://{{your-site}}/wp-admin/admin.php?page=wp-user-avatar-library) and see the currently-used avatars. You would do this before removing the plugin.