I got the story for you!
I live in Canada, and then I was travelling to United States.
My phone network is Rogers (operator logo shown in first line in Standby)
The another Operator logo (AT&T or T-Mobile) appeared in first line, then "Rogers" move to second line (under AT&T or T-Mobile).
I was planning to remove the operator logo in second line.

So I edited the layout.xml.
The number shown in red, so you can change it to remove the second operator logo.
<attr value="1"/> <attr value="239"/> <attr value="34"/> <attr value="-34"/> <attr value="10"/> <!-- 1 -->

For db2020 with 240x320, not tested with 176x220

It's worked, the second one disappeared.

You always change it when you want to remove all the operator logo.