ARM: dts: sunxi: Remove no longer used pinctrl/sun4i-a10.h header

All dts files for the sunxi platform have been switched to the generic
pinconf bindings. As a result, the sunxi specific pinctrl macros are
no longer used.

Remove the #include entry with the following command:

    sed --follow-symlinks -i -e '/pinctrl\/sun4i-a10.h/D' \
	arch/arm/boot/dts/sun?i*.*

arch/arm/boot/dts/sun9i-a80.dtsi was then edited to remove the extra
empty line.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts

@@ -49,7 +49,6 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
-#include <dt-bindings/pinctrl/sun4i-a10.h>
 
 / {
 	model = "Xunlong Orange Pi Zero";