Fix wrong public key deletion

This was introduced by rebasing on top of the rsa-backend migration
This should not be done since public keys are expected to be stored in persistent
storage since they can't be lazily derived from the private part that is encrypted

src/command/gen.rs

@@ -304,7 +304,6 @@ fn read_rsa_key<const R: usize, T: trussed::Client + AuthClient>(
     let parsed_pubkey_data: RsaPublicParts =
         trussed::postcard_deserialize(&pubkey_data).map_err(|_err| {
             error!("Failed to deserialize public key");
-            syscall!(client.delete(public_key));
             Status::UnspecifiedNonpersistentExecutionError
         })?;
     ctx.reply.expand(&[0x81])?;