Bluetooth: remove unnecessary function declaration

hci_notify() doesn't need declaration first.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b372fb8..c20cbe5 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -56,7 +56,6 @@
 static void hci_cmd_task(unsigned long arg);
 static void hci_rx_task(unsigned long arg);
 static void hci_tx_task(unsigned long arg);
-static void hci_notify(struct hci_dev *hdev, int event);
 
 static DEFINE_RWLOCK(hci_task_lock);