V4L/DVB (4026): Bttv-gpio-irq is no longer used, remove it

This functionality was used when remote control input for BTTV was handled
by a standalone module, to hook some functions of that module into the main 
bttv core.
Since that module is now extinct, this can go away
Signed-off-by: Ricardo Cerqueira <rmcc@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/bt8xx/bttv-gpio.c

@@ -118,20 +118,6 @@ int bttv_sub_del_devices(struct bttv_core *core)
 	return 0;
 }
 
-void bttv_gpio_irq(struct bttv_core *core)
-{
-	struct bttv_sub_driver *drv;
-	struct bttv_sub_device *dev;
-	struct list_head *item;
-
-	list_for_each(item,&core->subs) {
-		dev = list_entry(item,struct bttv_sub_device,list);
-		drv = to_bttv_sub_drv(dev->dev.driver);
-		if (drv && drv->gpio_irq)
-			drv->gpio_irq(dev);
-	}
-}
-
 /* ----------------------------------------------------------------------- */
 /* external: sub-driver register/unregister                                */
 

drivers/media/video/bt8xx/bttv.h

@@ -350,7 +350,6 @@ struct bttv_sub_driver {
 	char                   wanted[BUS_ID_SIZE];
 	int                    (*probe)(struct bttv_sub_device *sub);
 	void                   (*remove)(struct bttv_sub_device *sub);
-	void                   (*gpio_irq)(struct bttv_sub_device *sub);
 };
 #define to_bttv_sub_drv(x) container_of((x), struct bttv_sub_driver, drv)
 

drivers/media/video/bt8xx/bttvp.h

@@ -214,7 +214,6 @@ extern struct videobuf_queue_ops bttv_vbi_qops;
 extern struct bus_type bttv_sub_bus_type;
 int bttv_sub_add_device(struct bttv_core *core, char *name);
 int bttv_sub_del_devices(struct bttv_core *core);
-void bttv_gpio_irq(struct bttv_core *core);
 
 
 /* ---------------------------------------------------------- */