Deleting the plugin still doesn’t make the checkbox go away.
I would also add a 4th feature request:
Make the checkbox right above (or below) the Terms and Conditions checkbox. Right now the Captcha shows up between the two checkboxes, it would look a lot cleaner if they were aligned.
I’ll create a private post with admin credentials so you can take a look at the issue of the checkbox still being there after deletion.
To open a new support ticket, first select the relevant forum and then click the "New Post" button. Example: You need support for the core plugin? Click on Core Plugin support and click on the "New Post" Button.