How to delete (forever) a Monero Wallet ?

I created a Monero wallet using the GUI app and a Ledger device as a test.

I want to totally delete the wallet so that it is not on my Ledger device nor on my computer.

How do I totally delete the wallet on my Ledger?

I know that I can delete everything from the Monero GUI installation, but also want to totally delete any record of it from my Ledger device.

Ledge support says I must do this from the GUI app, but I see no way to delete the wallet within the GUI app or from Ledger Live.

Thanks in advance!