I tried using the code given, but I couldn't figure out how to use it.

But I have of thought of something but I do not know how to code it.
Say I have Content Control Title: Price and Product, both Tags "Annual" (assuming these values changes every year and other tags don't)

Maybe by using a event on exit

I add a rich text cc TAG: Clear
If I Select the field with the Clear Tag (On entry) then exit the field (On Exit)
Tags with "Annual" would clear