pinctrl: devicetree.c: remove orphan pinctrl_dt_has_hogs()

The helper pinctrl_dt_has_hogs() was introduced in
99e4f675 (pinctrl: core: Use delayed work for hogs), but the sole
use then got removed shortly after in 950b0d91 (pinctrl: core: Fix
regression caused by delayed work for hogs).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20190923142005.5632-1-linux@rasmusvillemoes.dkAcked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/devicetree.c

@@ -181,21 +181,6 @@ static int dt_remember_dummy_state(struct pinctrl *p, const char *statename)
 	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

@@ -9,8 +9,6 @@ struct of_phandle_args;
 
 #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);
 
@@ -23,11 +21,6 @@ int pinctrl_parse_index_with_args(const struct device_node *np,
 
 #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)
 {