V4L/DVB (13746): [Mantis CA] Bug: Remove duplicated symbol

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/mantis/mantis_ca.c

@@ -161,7 +161,6 @@ err:
 void mantis_ca_exit(struct mantis_pci *mantis)
 {
 	struct mantis_ca *ca = mantis->mantis_ca;
-	struct mantis_pci *mantis = ca->ca_priv;
 
 	dprintk(verbose, MANTIS_DEBUG, 1, "Mantis CA exit");