ARM: tegra: colibri_t30: remove unused nvidia, is-wired property

Remove unused nvidia,is-wired property.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra30-colibri.dtsi

@@ -949,7 +949,6 @@ asix@1 {
 
 	usb-phy@7d004000 {
 		status = "okay";
-		nvidia,is-wired = <1>;
 		vbus-supply = <&reg_lan_v_bus>;
 	};