We don't use [preallas.extract.FuzzyWeightingExtractor](https://github.com/ClimateImpactLab/poreallas/blob/2a88681397bee1e87e5254ee95b7bb8e107e114f/src/poreallas/extract.py#L43). It's cruft. Can just remove it.
We don't use preallas.extract.FuzzyWeightingExtractor. It's cruft. Can just remove it.