Remove datasets from the blocklist
The analysis is here: https://observablehq.com/@huggingface/blocked-datasets

We remove:
- the datasets that do not exist anymore on the Hub or are private
- the 5 most liked datasets: bigscience/P3, google/fleurs, mc4, bigscience/xP3, allenai/nllb
Remove datasets from the blocklist: The analysis is here: https://observablehq.com/@huggingface/blocked-datasets

We remove:
- the datasets that do not exist anymore on the Hub or are private
- the 5 most liked datasets: bigscience/P3, google/fleurs, mc4, bigscience/xP3, allenai/nllb