daemon: reconnect with timeout, try from both sides.

This is dumb, since one side will never succeed.  But in future when
there is a method for nodes to broadcast their public address (or send
their address inline to connected nodes), either side should try to
connect.

Importantly though, there are places which will queue packets at
various times (eg. HTLC timeout), so we need to clear the queue just
before re-transmitting, not when disconnecting.

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

daemon/peer.h

@@ -91,9 +91,6 @@ struct peer {
 	/* Network connection. */
 	struct io_conn *conn;
 
-	/* Did we connect to it? (Otherwise, they connected to us) */
-	bool we_connected;
-
 	/* Are we connected now? (Crypto handshake completed). */
 	bool connected;