ALSA: snd-usb-caiaq: Remove duplicate A8DJ control

Remove a duplicate control which causes an error when it is registered,
and causes later controls to not be registered. The device does not have
a fourth ground lift control.

Signed-off-by: Mark Hills <mark@pogo.org.uk>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/caiaq/caiaq-control.c b/sound/usb/caiaq/caiaq-control.c
index 136ef34..e92c2bb 100644
--- a/sound/usb/caiaq/caiaq-control.c
+++ b/sound/usb/caiaq/caiaq-control.c
@@ -270,7 +270,6 @@
 	{ "GND lift for TC Vinyl mode", 	24 + 0 		},
 	{ "GND lift for TC CD/Line mode", 	24 + 1 		},
 	{ "GND lift for phono mode", 		24 + 2 		},
-	{ "GND lift for TC Vinyl mode", 	24 + 3 		},
 	{ "Software lock", 			40 		}
 };