ALSA: dice: Remove left-over license text

Following a commit 1dd0dd0 ("ALSA: firewire: Remove some left-over
license text in sound/firewire"), this patch removes it added carelessly.

Fixes: 2133dc9 ("ALSA: dice: add support for Focusrite Saffire Pro 40 with TCD3070 ASIC")
Signed-off-by: Takashi Sakamoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: takaswie

sound/firewire/dice/dice-focusrite.c

@@ -2,8 +2,6 @@
 // dice-focusrite.c - a part of driver for DICE based devices
 //
 // Copyright (c) 2022 Takashi Sakamoto
-//
-// Licensed under the terms of the GNU General Public License, version 2.
 
 #include "dice.h"