usb: ohci-da8xx: remove unused callbacks from platform data

There are no more users of the platform_data callbacks in ohci-da8xx.
Remove them.

Signed-off-by: Bartosz Golaszewski <[e-mail]>
Acked-by: Alan Stern <[e-mail]>
Signed-off-by: Sekhar Nori <[e-mail]>

include/linux/platform_data/usb-davinci.h

···
 #ifndef __ASM_ARCH_USB_H
 #define __ASM_ARCH_USB_H
 
-struct	da8xx_ohci_root_hub;
-
-typedef void (*da8xx_ocic_handler_t)(struct da8xx_ohci_root_hub *hub,
-				     unsigned port);
-
 /* Passed as the platform data to the OHCI driver */
 struct	da8xx_ohci_root_hub {
-	/* Switch the port power on/off */
-	int	(*set_power)(unsigned port, int on);
-	/* Read the port power status */
-	int	(*get_power)(unsigned port);
-	/* Read the port over-current indicator */
-	int	(*get_oci)(unsigned port);
-	/* Over-current indicator change notification (pass NULL to disable) */
-	int	(*ocic_notify)(da8xx_ocic_handler_t handler);
-
 	/* Time from power on to power good (in 2 ms units) */
 	u8	potpgt;
 };