Delete legacy JSON metadata

Delete legacy `dataset_infos.json`.

dataset_infos.json

@@ -1 +0,0 @@
-{"default": {"description": "PyTorch original implementation of Towards Empathetic Open-domain Conversation Models: a New Benchmark and Dataset\n", "citation": "@inproceedings{rashkin2019towards,\n  title = {Towards Empathetic Open-domain Conversation Models: a New Benchmark and Dataset},\n  author = {Hannah Rashkin and Eric Michael Smith and Margaret Li and Y-Lan Boureau},\n  booktitle = {ACL},\n  year = {2019},\n}\n", "homepage": "https://github.com/facebookresearch/EmpatheticDialogues", "license": "", "features": {"conv_id": {"dtype": "string", "id": null, "_type": "Value"}, "utterance_idx": {"dtype": "int32", "id": null, "_type": "Value"}, "context": {"dtype": "string", "id": null, "_type": "Value"}, "prompt": {"dtype": "string", "id": null, "_type": "Value"}, "speaker_idx": {"dtype": "int32", "id": null, "_type": "Value"}, "utterance": {"dtype": "string", "id": null, "_type": "Value"}, "selfeval": {"dtype": "string", "id": null, "_type": "Value"}, "tags": {"dtype": "string", "id": null, "_type": "Value"}}, "supervised_keys": null, "builder_name": "empathetic_dialogues", "config_name": "default", "version": {"version_str": "0.1.0", "description": null, "datasets_version_to_prepare": null, "major": 0, "minor": 1, "patch": 0}, "splits": {"test": {"name": "test", "num_bytes": 3011332, "num_examples": 10943, "dataset_name": "empathetic_dialogues"}, "train": {"name": "train", "num_bytes": 19040509, "num_examples": 76673, "dataset_name": "empathetic_dialogues"}, "validation": {"name": "validation", "num_bytes": 3077481, "num_examples": 12030, "dataset_name": "empathetic_dialogues"}}, "download_checksums": {"https://dl.fbaipublicfiles.com/parlai/empatheticdialogues/empatheticdialogues.tar.gz": {"num_bytes": 28022709, "checksum": "56f234d77b7dd1f005fd365bb17769cfe346c3c84295b69bc069c8ccb83be03d"}}, "download_size": 28022709, "dataset_size": 25129322, "size_in_bytes": 53152031}}