ARM: dts: sun5i: Remove redundant interrupt-controller

The interrupt-parent property is set in sun5i.dtsi, so there's no need to
repeat it.

Signed-off-by: Maxime Ripard <[e-mail]>
Acked-by: Chen-Yu Tsai <[e-mail]>

arch/arm/boot/dts/sun5i-a10s.dtsi

···
 #include <dt-bindings/dma/sun4i-a10.h>
 
 / {
-	interrupt-parent = <&intc>;
-
 	aliases {
 		ethernet0 = &emac;
 	};

arch/arm/boot/dts/sun5i-a13.dtsi

···
 #include <dt-bindings/thermal/thermal.h>
 
 / {
-	interrupt-parent = <&intc>;
-
 	thermal-zones {
 		cpu_thermal {
 			/* milliseconds */