pinctrl: devicetree.c: remove orphan pinctrl_dt_has_hogs()

The helper pinctrl_dt_has_hogs() was introduced in
99e4f67508e1 (pinctrl: core: Use delayed work for hogs), but the sole
use then got removed shortly after in 950b0d91dc10 (pinctrl: core: Fix
regression caused by delayed work for hogs).

Signed-off-by: Rasmus Villemoes <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Acked-by: Tony Lindgren <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/devicetree.c

···
 	return dt_remember_or_free_map(p, statename, NULL, map, 1);
 }
 
-bool pinctrl_dt_has_hogs(struct pinctrl_dev *pctldev)
-{
-	struct device_node *np;
-	struct property *prop;
-	int size;
-
-	np = pctldev->dev->of_node;
-	if (!np)
-		return false;
-
-	prop = of_find_property(np, "pinctrl-0", &size);
-
-	return prop ? true : false;
-}
-
 int pinctrl_dt_to_map(struct pinctrl *p, struct pinctrl_dev *pctldev)
 {
 	struct device_node *np = p->dev->of_node;

drivers/pinctrl/devicetree.h

···
 
 #ifdef CONFIG_OF
 
-bool pinctrl_dt_has_hogs(struct pinctrl_dev *pctldev);
-
 void pinctrl_dt_free_maps(struct pinctrl *p);
 int pinctrl_dt_to_map(struct pinctrl *p, struct pinctrl_dev *pctldev);
 
···
 				  struct of_phandle_args *out_args);
 
 #else
-
-static inline bool pinctrl_dt_has_hogs(struct pinctrl_dev *pctldev)
-{
-	return false;
-}
 
 static inline int pinctrl_dt_to_map(struct pinctrl *p,
 				    struct pinctrl_dev *pctldev)