V4L/DVB (7794): cx88: Fix a warning

drivers/media/video/cx88/cx88-i2c.c: In function 'attach_inform':
drivers/media/video/cx88/cx88-i2c.c:102: warning: unused variable 'tun_setup'
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx88/cx88-i2c.c

@@ -99,7 +99,6 @@ static int cx8800_bit_getsda(void *data)
 
 static int attach_inform(struct i2c_client *client)
 {
-	struct tuner_setup tun_setup;
 	struct cx88_core *core = i2c_get_adapdata(client->adapter);
 
 	dprintk(1, "%s i2c attach [addr=0x%x,client=%s]\n",