Bluetooth: Remove 'return' in void function

void function return statements are not generally useful.
Signed-off-by: Meng Yu <yumeng18@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/6lowpan.c

@@ -841,8 +841,6 @@ static void chan_close_cb(struct l2cap_chan *chan)
 	} else {
 		spin_unlock(&devices_lock);
 	}
-
-	return;
 }
 
 static void chan_state_change_cb(struct l2cap_chan *chan, int state, int err)

net/bluetooth/l2cap_core.c

@@ -676,8 +676,6 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
 		skb_queue_purge(&chan->tx_q);
 		break;
 	}
-
-	return;
 }
 EXPORT_SYMBOL_GPL(l2cap_chan_del);