Delete legacy JSON metadata

Delete legacy `dataset_infos.json`.

dataset_infos.json

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-{"moroco": {"description": "The MOROCO (Moldavian and Romanian Dialectal Corpus) dataset contains 33564 samples of text collected from the news domain.\nThe samples belong to one of the following six topics:\n    - culture\n    - finance\n    - politics\n    - science\n    - sports\n    - tech\n", "citation": "@inproceedings{ Butnaru-ACL-2019,\n    author = {Andrei M. Butnaru and Radu Tudor Ionescu},\n    title = \"{MOROCO: The Moldavian and Romanian Dialectal Corpus}\",\n    booktitle = {Proceedings of ACL},\n    year = {2019},\n    pages={688--698},\n}\n", "homepage": "https://github.com/butnaruandrei/MOROCO", "license": "CC BY-SA 4.0 License", "features": {"id": {"dtype": "string", "id": null, "_type": "Value"}, "category": {"num_classes": 6, "names": ["culture", "finance", "politics", "science", "sports", "tech"], "names_file": null, "id": null, "_type": "ClassLabel"}, "sample": {"dtype": "string", "id": null, "_type": "Value"}}, "post_processed": null, "supervised_keys": null, "builder_name": "moroco", "config_name": "moroco", "version": {"version_str": "1.0.0", "description": null, "major": 1, "minor": 0, "patch": 0}, "splits": {"train": {"name": "train", "num_bytes": 39314292, "num_examples": 21719, "dataset_name": "moroco"}, "test": {"name": "test", "num_bytes": 10877813, "num_examples": 5924, "dataset_name": "moroco"}, "validation": {"name": "validation", "num_bytes": 10721304, "num_examples": 5921, "dataset_name": "moroco"}}, "download_checksums": {"https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/train_samples.txt": {"num_bytes": 39010202, "checksum": "633fa23f51771d06baecde648f045bbfeb43ff561bb3143a5c86c87d6b9b9232"}, "https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/train_category_labels.txt": {"num_bytes": 173752, "checksum": "67df722183c134e2f75fac9b9bba8c1b6e58b2ff7afc81e1024c4eb840926b60"}, "https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/validation_samples.txt": {"num_bytes": 10638402, "checksum": "e3bacccf536882cb8defe0b59c6a8b7a63ce373f6be5b3dd61449cd5cbb0ee14"}, "https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/validation_category_labels.txt": {"num_bytes": 47368, "checksum": "83887b7cc674ac1d776975191aff950db22f7cc5bb98bbc72a0058c7b46ed6df"}, "https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/test_samples.txt": {"num_bytes": 10794869, "checksum": "a4a1e4e4303772bcbc8d72cc7475cf73ab1bdb1487f1c8e50f5771aecdef9eb1"}, "https://raw.githubusercontent.com/butnaruandrei/MOROCO/master/MOROCO/preprocessed/all/test_category_labels.txt": {"num_bytes": 47392, "checksum": "5e33e48b1811e3fb08e9fb232e3da8f829a353c37796c6bd41871e3e699635b8"}}, "download_size": 60711985, "post_processing_size": null, "dataset_size": 60913409, "size_in_bytes": 121625394}}