arm: dts: k3-am654: remove duplicate mdio

With the Linux and U-Boot board dtb files unified, we now have a
duplicate mdio node. Remove it

Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts
index 8e57c77..14bf1b4 100644
--- a/arch/arm/dts/k3-am654-r5-base-board.dts
+++ b/arch/arm/dts/k3-am654-r5-base-board.dts
@@ -159,15 +159,6 @@
 	/delete-property/ assigned-clock-parents;
 };
 
-&davinci_mdio {
-	phy0: ethernet-phy@0 {
-		reg = <0>;
-		/* TODO: phy reset: TCA9555RTWR(i2c:0x21)[p04].GPIO_MCU_RGMII_RSTN */
-		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
-		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
-	};
-};
-
 &mcu_cpsw {
 	reg = <0x0 0x46000000 0x0 0x200000>,
 	      <0x0 0x40f00200 0x0 0x2>;