pinctrl: pinmux: Remove unused members from struct function_desc

All drivers are converted to use embedded struct pinfunction.
Remove unused members from struct function_desc.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240530085745.1539925-12-andy.shevchenko@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinmux.h

@@ -134,16 +134,10 @@ static inline void pinmux_init_device_debugfs(struct dentry *devroot,
 /**
  * struct function_desc - generic function descriptor
  * @func: generic data of the pin function (name and groups of pins)
- * @name: name of the function
- * @group_names: array of pin group names
- * @num_group_names: number of pin group names
  * @data: pin controller driver specific data
  */
 struct function_desc {
 	struct pinfunction func;
-	const char *name;
-	const char * const *group_names;
-	int num_group_names;
 	void *data;
 };
 
@@ -151,9 +145,6 @@ struct function_desc {
 #define PINCTRL_FUNCTION_DESC(_name, _grps, _num_grps, _data)	\
 (struct function_desc) {					\
 	.func = PINCTRL_PINFUNCTION(_name, _grps, _num_grps),	\
-	.name = _name,						\
-	.group_names = _grps,					\
-	.num_group_names = _num_grps,				\
 	.data = _data,						\
 }