[Bluetooth] Kill redundant NULL checks before kfree()

There's no need to check for NULL before calling kfree() on a pointer.

Signed-off-by: Jesper Juhl <[e-mail]>
Signed-off-by: Marcel Holtmann <[e-mail]>

drivers/bluetooth/bpa10x.c

···
 	if (!urb)
 		return;
 
-	if (urb->setup_packet)
-		kfree(urb->setup_packet);
-
-	if (urb->transfer_buffer)
-		kfree(urb->transfer_buffer);
+	kfree(urb->setup_packet);
+	kfree(urb->transfer_buffer);
 
 	usb_free_urb(urb);
 }

drivers/bluetooth/hci_usb.c

···
 			urb = &_urb->urb;
 			BT_DBG("%s freeing _urb %p type %d urb %p",
 					husb->hdev->name, _urb, _urb->type, urb);
-			if (urb->setup_packet)
-				kfree(urb->setup_packet);
-			if (urb->transfer_buffer)
-				kfree(urb->transfer_buffer);
+			kfree(urb->setup_packet);
+			kfree(urb->transfer_buffer);
 			_urb_free(_urb);
 		}