Created by: vaskonov
Removed obsolete Ranking components.
Removed models:
- ranking_default.json
- ranking_default_triplet.json
- ranking_ubuntu_v2_bert_sep.json
- ranking_ubuntu_v2_bert_sep_interact.json
- ranking_ubuntu_v2_bert_uncased.json
- ranking_ubuntu_v2_mt_word2vec_dam_transformer.json
- ranking_ubuntu_v2_mt_word2vec_smn.json