ARM: shmobile: r8a7740 dtsi: Remove duplicate interrupt-parent property

Caused by interaction between commit
08ec67b50d ("ARM: shmobile: r8a7740 dtsi:
Add Ethernet support") and commit 9ff254adc1
("ARM: shmobile: dts: Move interrupt-parent property to root node").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7740.dtsi

@@ -124,7 +124,6 @@
 		compatible = "renesas,gether-r8a7740";
 		reg = <0xe9a00000 0x800>,
 		      <0xe9a01800 0x800>;
-		interrupt-parent = <&gic>;
 		interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
 		/* clocks = <&mstp3_clks R8A7740_CLK_GETHER>; */
 		phy-mode = "mii";