common: gossmap now always ignores private gossip_store messages.

In the next PR, they'll be removed, but for now all our code doesn't
want them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

plugins/pay.c

@@ -1300,8 +1300,6 @@ static const char *notification_topics[] = {
 int main(int argc, char *argv[])
 {
 	setup_locale();
-	/* We are migrated, ready for public-only gossmap! */
-	gossmap_public_only = true;
 	plugin_main(argv, init, PLUGIN_RESTARTABLE, true, NULL, commands,
 		    ARRAY_SIZE(commands), NULL, 0, NULL, 0,
 		    notification_topics, ARRAY_SIZE(notification_topics),