Revert "Add PHY_ID_BCM54213PE identifier."

This reverts commit b8e68d153d.

drivers/net/phy/bcm-phy-ptp.c

@@ -915,9 +915,6 @@ struct bcm_ptp_private *bcm_ptp_probe(struct phy_device *phydev)
 
 	switch (BRCM_PHY_MODEL(phydev)) {
 	case PHY_ID_BCM54210E:
-#ifdef PHY_ID_BCM54213PE
-	case PHY_ID_BCM54213PE:
-#endif
 		break;
 	default:
 		return NULL;