Function ecdh

devtools/onion.c:17–20

We don't actually use this, but common/onion needs it */

/* We don't actually use this, but common/onion needs it */
void ecdh(const struct pubkey *point, struct secret *ss)
{
	abort();
}

static void do_generate(int argc, char **argv,
			const u8 *assocdata,