Delete legacy JSON metadata

Delete legacy `dataset_infos.json`.

dataset_infos.json

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-{"default": {"description": "A translation of the word pair similarity dataset wordsim-353 to Twi.\n\nThe dataset was presented in the paper\nAlabi et al.: Massive vs. Curated Embeddings for Low-Resourced\nLanguages: the Case of Yor\u00f9b\u00e1 and Twi (LREC 2020).\n", "citation": "@inproceedings{alabi-etal-2020-massive,\n    title = \"Massive vs. Curated Embeddings for Low-Resourced Languages: the Case of {Y}or{\\`u}b{\\'a} and {T}wi\",\n    author = \"Alabi, Jesujoba  and\n      Amponsah-Kaakyire, Kwabena  and\n      Adelani, David  and\n      Espa{\\~n}a-Bonet, Cristina\",\n    booktitle = \"Proceedings of the 12th Language Resources and Evaluation Conference\",\n    month = may,\n    year = \"2020\",\n    address = \"Marseille, France\",\n    publisher = \"European Language Resources Association\",\n    url = \"https://www.aclweb.org/anthology/2020.lrec-1.335\",\n    pages = \"2754--2762\",\n    language = \"English\",\n    ISBN = \"979-10-95546-34-4\",\n}\n", "homepage": "https://github.com/ajesujoba/YorubaTwi-Embedding", "license": "", "features": {"twi1": {"dtype": "string", "id": null, "_type": "Value"}, "twi2": {"dtype": "string", "id": null, "_type": "Value"}, "similarity": {"dtype": "float32", "id": null, "_type": "Value"}}, "post_processed": null, "supervised_keys": null, "builder_name": "twi_wordsim353", "config_name": "default", "version": {"version_str": "0.0.0", "description": null, "major": 0, "minor": 0, "patch": 0}, "splits": {"test": {"name": "test", "num_bytes": 7285, "num_examples": 274, "dataset_name": "twi_wordsim353"}}, "download_checksums": {"https://raw.githubusercontent.com/ajesujoba/YorubaTwi-Embedding/master/Twi/wordsim_tw.csv": {"num_bytes": 6141, "checksum": "69850d6cf5079f1a2d79fd9fdf426ee29c167b65b5babd3a88d1f7411d5921a5"}}, "download_size": 6141, "post_processing_size": null, "dataset_size": 7285, "size_in_bytes": 13426}}