Long Since Unpaired Apple Watch but Still Getting Notifications to Update

My son gave me an Apple Watch to try out last year. I told him thanks but my phone was enough; the watch screen is a little small. We unpaired it and I never thought about it again. After the last ios update, I keep getting notifications many, many times a day telling me I need to update my Apple Watch.

I don't even have that watch anymore to try and unpair it again. I'm really not sure what to do but that sure is a lot of notifications I'm getting. Any suggestions?