[docs] remove stale comment (#6964)
[docs] remove stale comment (#6964)


openthread/openthread,abtink/openthread,abtink/openthread,srickardti/openthread,openthread/openthread,abtink/openthread,abtink/openthread,jwhui/openthread,openthread/openthread,jwhui/openthread,jwhui/openthread,srickardti/openthread,jwhui/openthread,srickardti/openthread,openthread/openthread,srickardti/openthread