Delete legacy JSON metadata

Delete legacy `dataset_infos.json`.

dataset_infos.json

@@ -1 +0,0 @@
-{"default": {"description": "dataset contains discourse annotation and relation on threads from reddit during 2016\n", "citation": "@inproceedings{coarsediscourse, title={Characterizing Online Discussion Using Coarse Discourse Sequences}, author={Zhang, Amy X. and Culbertson, Bryan and Paritosh, Praveen}, booktitle={Proceedings of the 11th International AAAI Conference on Weblogs and Social Media}, series={ICWSM '17}, year={2017}, location = {Montreal, Canada} }\n", "homepage": "https://github.com/google-research-datasets/coarse-discourse", "license": "", "features": {"title": {"dtype": "string", "id": null, "_type": "Value"}, "is_self_post": {"dtype": "bool", "id": null, "_type": "Value"}, "subreddit": {"dtype": "string", "id": null, "_type": "Value"}, "url": {"dtype": "string", "id": null, "_type": "Value"}, "majority_link": {"dtype": "string", "id": null, "_type": "Value"}, "is_first_post": {"dtype": "bool", "id": null, "_type": "Value"}, "majority_type": {"dtype": "string", "id": null, "_type": "Value"}, "id_post": {"dtype": "string", "id": null, "_type": "Value"}, "post_depth": {"dtype": "int32", "id": null, "_type": "Value"}, "in_reply_to": {"dtype": "string", "id": null, "_type": "Value"}, "annotations": {"feature": {"annotator": {"dtype": "string", "id": null, "_type": "Value"}, "link_to_post": {"dtype": "string", "id": null, "_type": "Value"}, "main_type": {"dtype": "string", "id": null, "_type": "Value"}}, "length": -1, "id": null, "_type": "Sequence"}}, "supervised_keys": null, "builder_name": "coarse_discourse", "config_name": "default", "version": {"version_str": "0.1.0", "description": null, "datasets_version_to_prepare": null, "major": 0, "minor": 1, "patch": 0}, "splits": {"train": {"name": "train", "num_bytes": 45443464, "num_examples": 116357, "dataset_name": "coarse_discourse"}}, "download_checksums": {"https://github.com/google-research-datasets/coarse-discourse/archive/master.zip": {"num_bytes": 4636201, "checksum": "8e1e685c5907a6d654be8b8ed307522fd91ca919f503713fd1627fbe3d43c3cd"}}, "download_size": 4636201, "dataset_size": 45443464, "size_in_bytes": 50079665}}