delete the dataset when repo is disabled or does not exist
Fixes #2272 and #2273.

See related PR: https://github.com/huggingface/huggingface_hub/pull/1965 (once released, change the code in datasets-server)
delete the dataset when repo is disabled or does not exist: Fixes #2272 and #2273.

See related PR: https://github.com/huggingface/huggingface_hub/pull/1965 (once released, change the code in datasets-server)