revert generate testnet command, refactor.
revert generate testnet command, refactor.


Former-commit-id: 05be075c470ff9f768c75440551e51b36116abab
alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum