[PATCH 3/3] huawei: Remove call meter support for EM770

[Marcel Holtmann]

Hi Zhenhua,

> EM770W returns "COMMAND NOT SUPPORT" when we send "AT+CCWE=1" to
> initialize call meter atom. So disable it.

when re-doing patch 2/3 then please fix this properly so that this extra
patch is not needed anymore.

Regards

Marcel