arm64: tegra: smaug: Remove extra PLL power supplies for XUSB

The XUSB pad controller handles the various PLL power supplies, so
remove any references to them from the XUSB controller device tree
node.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-smaug.dts

@@ -1642,10 +1642,6 @@ usb@70090000 {
 		dvddio-pex-supply = <&avddio_1v05>;
 		hvddio-pex-supply = <&pp1800>;
 		avdd-usb-supply = <&pp3300>;
-		avdd-pll-utmip-supply = <&pp1800>;
-		avdd-pll-uerefe-supply = <&pp1050_avdd>;
-		dvdd-pex-pll-supply = <&avddio_1v05>;
-		hvdd-pex-pll-e-supply = <&pp1800>;
 
 		status = "okay";
 	};