configs: imx8m{m, n}_venice: remove unneeded CONFIG_FEC_MXC_PHYADDR

The IMX8M based Venice boards all have device-tree fec nodes that
use proper dt with a phy-handle pointing to a phy with reg assigned
to the proper phy address.

There is no need to keep using the CONFIG_FEC_MXC_PHYADDR hack when
a proper dt is used - remove it.

This was previously done in commit 400eebf10d9b
("configs: imx8m{m, n}_venice: remove unneeded CONFIG_FEC_MXC_PHYADDR")
but got clobbered by commit 6889412ad5e7
("Convert CONFIG_SYS_BARGSIZE to Kconfig")

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
diff --git a/include/configs/imx8mm_venice.h b/include/configs/imx8mm_venice.h
index 44c6bc3..6ecc347 100644
--- a/include/configs/imx8mm_venice.h
+++ b/include/configs/imx8mm_venice.h
@@ -82,8 +82,4 @@
 #define PHYS_SDRAM                      0x40000000
 #define PHYS_SDRAM_SIZE			SZ_4G
 
-/* FEC */
-#define CONFIG_FEC_MXC_PHYADDR          0
-#define FEC_QUIRK_ENET_MAC
-
 #endif
diff --git a/include/configs/imx8mn_venice.h b/include/configs/imx8mn_venice.h
index 6694820..4266eb0 100644
--- a/include/configs/imx8mn_venice.h
+++ b/include/configs/imx8mn_venice.h
@@ -76,8 +76,4 @@
 #define PHYS_SDRAM                      0x40000000
 #define PHYS_SDRAM_SIZE			SZ_4G
 
-/* FEC */
-#define CONFIG_FEC_MXC_PHYADDR          0
-#define FEC_QUIRK_ENET_MAC
-
 #endif