media: cx18: Remove unused cx18_reset_ir_gpio

cx18_reset_ir_gpio() has been unused in tree since 2009
commit eefe101 ("V4L/DVB (10759): cx18: Convert GPIO connected
functions to act as v4l2_subdevices")

It has a comment saying it's exported for use by 'lirc_pvr150' but I don't
see any sign of it in the lirc git, and I see it removed support
for lirc_i2c.c 'Flavors of the Hauppage PVR-150...' in 2014.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <[email protected]>
Signed-off-by: Sean Young <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

Author: Dr. David Alan Gilbert

drivers/media/pci/cx18/cx18-gpio.c

@@ -305,21 +305,6 @@ int cx18_gpio_register(struct cx18 *cx, u32 hw)
 	return v4l2_device_register_subdev(&cx->v4l2_dev, sd);
 }
 
-void cx18_reset_ir_gpio(void *data)
-{
-	struct cx18 *cx = to_cx18(data);
-
-	if (cx->card->gpio_i2c_slave_reset.ir_reset_mask == 0)
-		return;
-
-	CX18_DEBUG_INFO("Resetting IR microcontroller\n");
-
-	v4l2_subdev_call(&cx->sd_resetctrl,
-			 core, reset, CX18_GPIO_RESET_Z8F0811);
-}
-EXPORT_SYMBOL(cx18_reset_ir_gpio);
-/* This symbol is exported for use by lirc_pvr150 for the IR-blaster */
-
 /* Xceive tuner reset function */
 int cx18_reset_tuner_gpio(void *dev, int component, int cmd, int value)
 {

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

@@ -17,5 +17,4 @@ enum cx18_gpio_reset_type {
 	CX18_GPIO_RESET_XC2028  = 2,
 };
 
-void cx18_reset_ir_gpio(void *data);
 int cx18_reset_tuner_gpio(void *dev, int component, int cmd, int value);