mfd: twl6040: Drop twl6040_platform_data and associated definitions

As of df04b624 ("mfd: twl6040: Remove support for legacy (pdata)
mode") the driver no longer references the platform data, so we can drop
its definition, as well as definitions of related structures.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20220926054421.1546436-5-dmitry.torokhov@gmail.com

include/linux/mfd/twl6040.h

@@ -174,35 +174,6 @@
 
 #define TWL6040_GPO_MAX	3
 
-/* TODO: All platform data struct can be removed */
-struct twl6040_codec_data {
-	u16 hs_left_step;
-	u16 hs_right_step;
-	u16 hf_left_step;
-	u16 hf_right_step;
-};
-
-struct twl6040_vibra_data {
-	unsigned int vibldrv_res;	/* left driver resistance */
-	unsigned int vibrdrv_res;	/* right driver resistance */
-	unsigned int viblmotor_res;	/* left motor resistance */
-	unsigned int vibrmotor_res;	/* right motor resistance */
-	int vddvibl_uV;			/* VDDVIBL volt, set 0 for fixed reg */
-	int vddvibr_uV;			/* VDDVIBR volt, set 0 for fixed reg */
-};
-
-struct twl6040_gpo_data {
-	int gpio_base;
-};
-
-struct twl6040_platform_data {
-	struct gpio_desc *audpwron_gpio;	/* audio power-on gpio */
-
-	struct twl6040_codec_data *codec;
-	struct twl6040_vibra_data *vibra;
-	struct twl6040_gpo_data *gpo;
-};
-
 struct gpio_desc;
 struct regmap;
 struct regmap_irq_chips_data;