[ALSA] usb-audio: remove old compatibility wrappers (2/2)

Modules: USB generic driver

Move the usb_complete_callback() compatibility wrapper out of the
kernel tree.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index ea1b1f8..5429b16 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -1044,7 +1044,7 @@
 		u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 		u->urb->interval = 1 << subs->datainterval;
 		u->urb->context = u;
-		u->urb->complete = snd_usb_complete_callback(snd_complete_urb);
+		u->urb->complete = snd_complete_urb;
 	}
 
 	if (subs->syncpipe) {
@@ -1070,7 +1070,7 @@
 			u->urb->number_of_packets = 1;
 			u->urb->interval = 1 << subs->syncinterval;
 			u->urb->context = u;
-			u->urb->complete = snd_usb_complete_callback(snd_complete_sync_urb);
+			u->urb->complete = snd_complete_sync_urb;
 		}
 	}
 	return 0;