arm64: dts: imx8mp: Do not delete PHY nodes on i.MX8MP DHCOM PDK2

The PHY nodes may be activated via DTO in case another SoM variant
is populated into the development kit. Do not delete the nodes.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk2.dts

@@ -104,18 +104,6 @@ led-3 {
 	};
 };
 
-/*
- * PDK2 carrier board uses SoM with KSZ9131 populated and connected to
- * SoM EQoS ethernet RGMII interface. Remove the other SoM PHY DT node.
- */
-/delete-node/ &ethphy0f;
-
-/*
- * PDK2 carrier board has KSZ9021 PHY populated and connected to SoM FEC
- * ethernet RGMII interface. The SoM is not populated with second FEC PHY.
- */
-/delete-node/ &ethphy1f;
-
 &fec {	/* Second ethernet */
 	phy-handle = <&ethphypdk>;