[media] gspca - zc3xx: Remove double definition

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/zc3xx-reg.h

@@ -160,8 +160,6 @@
 #define ZC3XX_R1A6_YMEANAFTERAE        0x01a6
 #define ZC3XX_R1A7_CALCGLOBALMEAN      0x01a7
 
-#define ZC3XX_R1A2_BLUEMEANAFTERAGC    0x01a2
-
 /* Matrixes */
 
 /* Color matrix is like :