ar71xx: remove wrong MAC address adjustment for Archer C60 v2

The adjustment of the MAC address for Archer C60 v2 in 10_fix_wifi_mac
is broken since a "mac" partition is not set up for this device on
ar71xx. Instead, the MAC address is already patched correctly in
11-ath10k-caldata.

Remove the useless adjustment.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ar71xx/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac

@@ -15,8 +15,7 @@ case "$board" in
 	archer-c58-v1|\
 	archer-c59-v1|\
 	archer-c59-v2|\
-	archer-c60-v1|\
-	archer-c60-v2)
+	archer-c60-v1)
 		echo $(macaddr_add $(mtd_get_mac_binary mac 0x8)  $(($PHYNBR - 1)) ) > /sys${DEVPATH}/macaddress
 		;;
 	*)