Hi,
thank you for reply. Yes, it makes sense to me. But please note that it is not about deleting 1 file or 1 directory, you need to go at least to
/etc/letsencrypt/archives
/etc/letsencrypt/live
/etc/letsencrypt/renewal
Also if you are automatizing it then you need to make sure that new version of Let’s Encrypt client did not changed the structure in /etc/letsencrypt.
So to support full CRUD I’m thinking if it would be a reasonable feature request to request addition of delete action (for a domain parameter).
What do you think? Perhaps I’m missing something, that’s why I ask 
Thank you