media: rockchip: rkisp1: remove unused irq variable

The irq variable in struct rkisp1 is unused as it is only used
to request the irq during probe, so remove it.
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/rockchip/rkisp1/rkisp1-common.h

@@ -348,7 +348,6 @@ struct rkisp1_debug {
  */
 struct rkisp1_device {
 	void __iomem *base_addr;
-	int irq;
 	struct device *dev;
 	unsigned int clk_size;
 	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];

drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c

@@ -490,8 +490,6 @@ static int rkisp1_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	rkisp1->irq = irq;
-
 	for (i = 0; i < match_data->size; i++)
 		rkisp1->clks[i].id = match_data->clks[i];
 	ret = devm_clk_bulk_get(dev, match_data->size, rkisp1->clks);