Bluetooth: Do not check func ready existence

Functions will be always defined and in case not implemented as
dummy __no_func.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

net/bluetooth/l2cap_core.c

@@ -945,8 +945,7 @@ static void l2cap_chan_ready(struct l2cap_chan *chan)
 
 	chan->state = BT_CONNECTED;
 
-	if (chan->ops->ready)
-		chan->ops->ready(chan);
+	chan->ops->ready(chan);
 }
 
 static void l2cap_do_start(struct l2cap_chan *chan)