[media] cx18: remove duplicate CX18_ALSA_DBGFLG_WARN define

The CX18_ALSA_DBGFLG_WARN is cut and pasted twice and we can delete the
second instance.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/pci/cx18/cx18-alsa.h

@@ -48,7 +48,6 @@ static inline void snd_cx18_unlock(struct snd_cx18_card *cxsc)
 	mutex_unlock(&cx->serialize_lock);
 }
 
-#define CX18_ALSA_DBGFLG_WARN  (1 << 0)
 #define CX18_ALSA_DBGFLG_WARN  (1 << 0)
 #define CX18_ALSA_DBGFLG_INFO  (1 << 1)