gpio: omap: drop omap_gpio_list

omap_gpio_list is unused so drop it.
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-omap.c

@@ -34,8 +34,6 @@
 #define OMAP_GPIO_QUIRK_IDLE_REMOVE_TRIGGER	BIT(2)
 #define OMAP_GPIO_QUIRK_DEFERRED_WKUP_EN	BIT(1)
 
-static LIST_HEAD(omap_gpio_list);
-
 struct gpio_regs {
 	u32 irqenable1;
 	u32 irqenable2;
@@ -1478,8 +1476,6 @@ static int omap_gpio_probe(struct platform_device *pdev)
 
 	pm_runtime_put(dev);
 
-	list_add_tail(&bank->node, &omap_gpio_list);
-
 	return 0;
 }