include: dt-bindings: rockchip: remove unused defines

The Rockchip dtsi and dts files have been bulk-converted for the
remaining raw gpio numbers into their descriptive counterparts and
also got rid of the unhelpful RK_FUNC_x -> x and RK_GPIOx -> x
mappings, so remove the unused defines in 'rockchip.h' to prevent
that someone start using them again.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200512203524.7317-3-jbx6244@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

include/dt-bindings/pinctrl/rockchip.h

@@ -9,13 +9,6 @@
 #ifndef __DT_BINDINGS_ROCKCHIP_PINCTRL_H__
 #define __DT_BINDINGS_ROCKCHIP_PINCTRL_H__
 
-#define RK_GPIO0	0
-#define RK_GPIO1	1
-#define RK_GPIO2	2
-#define RK_GPIO3	3
-#define RK_GPIO4	4
-#define RK_GPIO6	6
-
 #define RK_PA0		0
 #define RK_PA1		1
 #define RK_PA2		2
@@ -50,9 +43,5 @@
 #define RK_PD7		31
 
 #define RK_FUNC_GPIO	0
-#define RK_FUNC_1	1 /* deprecated */
-#define RK_FUNC_2	2 /* deprecated */
-#define RK_FUNC_3	3 /* deprecated */
-#define RK_FUNC_4	4 /* deprecated */
 
 #endif