[FHI72] [xran F] Revert and simplify the code for Liteon FR2 interoperability
The MR !3668 (merged) introduced a lot of unnecessary changes. This MR removes useless code in both OAI and xran F release library.
TODO:
- add an example config file for Liteon FR2 and add its configuration instructions in FHI72 README
- rebase once !3864 (merged) is merged
Edited by Teodora Vladić