Cleanup phanbell device tree

Remove duplicated sound-rt5645 node.

Change-Id: Ia66a0acd482e8c2588b6d9225de913fa517a5e81
diff --git a/arch/arm64/boot/dts/freescale/fsl-imx8mq-phanbell.dts b/arch/arm64/boot/dts/freescale/fsl-imx8mq-phanbell.dts
index 8896a16..e67ac41 100644
--- a/arch/arm64/boot/dts/freescale/fsl-imx8mq-phanbell.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-imx8mq-phanbell.dts
@@ -50,7 +50,7 @@
 		audio-cpu = <&sai2>;
 		audio-codec = <&rt5645>;
 		google,model = "edgetpu-audio-card";
-        status = "okay";
+		status = "okay";
 	};
 
 	busfreq {
@@ -61,15 +61,6 @@
 		gpios = <&gpio3 5 GPIO_ACTIVE_LOW>;
 		status = "okay";
 	};
-
-	sound-rt5645 {
-		compatible = "google,edgetpu-audio-card";
-		model = "edgetpu-audio-card";
-		audio-cpu = <&sai2>;
-		audio-codec = <&rt5645>;
-		google,model = "edgetpu-audio-card";
-		status = "okay";
-	};
 };
 
 &iomuxc {