[][Remove mt7981 u3 support in sgmii2 2.5g wan dts]

[Description]
Remove mt7981 u3 support in sgmii2 2.5g wan dts

[Release-log]
N/A

Change-Id: Ie0f2f845551d52ebc920cb228ccd05d29102b82c
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5331161
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-spim-nand-2500wan-gmac2.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-spim-nand-2500wan-gmac2.dts
index 920deaa..e6b587b 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-spim-nand-2500wan-gmac2.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981-spim-nand-2500wan-gmac2.dts
@@ -241,8 +241,5 @@
 };
 
 &xhci {
-	mediatek,u3p-dis-msk = <0x0>;
-	phys = <&u2port0 PHY_TYPE_USB2>,
-	       <&u3port0 PHY_TYPE_USB3>;
 	status = "okay";
 };