V4L/DVB (8738): dtv5100: remove old definition from header

Signed-off-by: Antoine Jacquet <royale@zerezo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/dvb-usb/dtv5100.h

@@ -48,6 +48,4 @@ static struct {
 	{ }		/* Terminating entry */
 };
 
-extern struct dvb_frontend* dtv5100_fe_attach(void);
-
 #endif