Revert "bsc: Add Lb interface support"

This reverts commit c47fdb2e52c98f81a3b708dcaeaf131096fe912c - as
osmo-bsc currently doesn't yet have a Lb interface, we shouldn't try
to test it yet.

Change-Id: I7898dd336cbef27553d97857ac22f1a539da1380
3 files changed