I don't use these clients, but many others have the delete feature, it's a standard one (https://github.com/nostr-protocol/nips/blob/master/09.md).
I mainly use Gossip, Coracle, Voyage, and all them support deletion request.

You can also use https://delete.nostr.com.

Really? I haven’t noticed an option for that in Damus or Primal. How do you do it? 

grayruby

It's already possible, I do exactly that when I screw up with a note.

dtonon

nostr

Do you want edits on nostr for short text notes?

I would like to be able to delete. Then when I screw up I can just delete and try again. 