ARM: dts: sunxi: Remove pinctrl size-cells property

The children nodes of the pinctrl node hadn't have any reg property for
quite some time, so we don't need the size-cells property. Remove it.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

arch/arm/boot/dts/sun6i-a31.dtsi

@@ -1374,7 +1374,6 @@ r_pio: pinctrl@1f02c00 {
 			gpio-controller;
 			interrupt-controller;
 			#interrupt-cells = <3>;
-			#size-cells = <0>;
 			#gpio-cells = <3>;
 
 			s_ir_rx_pin: s-ir-rx-pin {

arch/arm/boot/dts/sun9i-a80.dtsi

@@ -958,7 +958,6 @@ pio: pinctrl@6000800 {
 			gpio-controller;
 			interrupt-controller;
 			#interrupt-cells = <3>;
-			#size-cells = <0>;
 			#gpio-cells = <3>;
 
 			gmac_rgmii_pins: gmac-rgmii-pins {