usb: renesas_usbhs: Remove unneeded #include <linux/platform_data/gpio-rcar.h>

This header file will be removed soon.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <balbi@ti.com>

drivers/usb/renesas_usbhs/rcar2.c

@@ -13,7 +13,6 @@
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <linux/phy/phy.h>
-#include <linux/platform_data/gpio-rcar.h>
 #include <linux/usb/phy.h>
 #include "common.h"
 #include "rcar2.h"