How to delete/remove default scenes created from the Canadian tire Christmas light strip?

To be clear, I am not talking about a routine. And I am not talking about a group of lights.

I got a light strip from Canadian tire a couple years ago. There is no app for it. It just connected directly to Alex. However, they stopped working. I’ve tried resetting them and all of the troubleshooting in the manual And on the Internet. But it looks like they are ready for the garbage.

So now they don’t show up in my Alexa app. They’re completely disconnected from my account. Yet for some reason under the scenes section I still have all of the different default scenes?

Such as Christmas light show, Valentine’s Day, St. Patrick’s, etc.

How on earth do I get rid of these?