dt-bindings: doc: net: remove Linux API references

In commit 687e3d55 ("dt-bindings: doc: reflect new NVMEM
of_get_mac_address behaviour") I've kept or added references to Linux
of_get_mac_address API which is unwanted so this patch fixes that by
removing those references.

Fixes: 687e3d55 ("dt-bindings: doc: reflect new NVMEM of_get_mac_address behaviour")
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/keystone-netcp.txt

@@ -139,9 +139,9 @@ Optional properties:
 			sub-module attached to this interface.
 
 The MAC address will be determined using the optional properties defined in
-ethernet.txt, as provided by the of_get_mac_address API and only if efuse-mac
-is set to 0. If any of the optional MAC address properties are not present,
-then the driver will use random MAC address.
+ethernet.txt and only if efuse-mac is set to 0. If all of the optional MAC
+address properties are not present, then the driver will use a random MAC
+address.
 
 Example binding:
 

Documentation/devicetree/bindings/net/wireless/mediatek,mt76.txt

@@ -16,8 +16,8 @@ Optional properties:
 - ieee80211-freq-limit: See ieee80211.txt
 - mediatek,mtd-eeprom: Specify a MTD partition + offset containing EEPROM data
 
-The driver is using of_get_mac_address API, so the MAC address can be as well
-be set with corresponding optional properties defined in net/ethernet.txt.
+The MAC address can as well be set with corresponding optional properties
+defined in net/ethernet.txt.
 
 Optional nodes:
 - led: Properties for a connected LED