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>
(cherry picked from commit cbdc91902466dd113b9680566abb2eb2f8022dd4)