Remove packages we don't use

[eculler]

@nkorinek these are the packages I don't think we use:

• pyqt
• tqdm
• kiwisolver
• plotly (we could discuss this...I know some people like it, but I can just never understand how they are supposed to work business- and license-wise so I don't love teaching it to students)
• pysal (maybe we should be using this? I think most of what it does we handle through rioxarray and scikit-learn)
• geopy
• descartes
• contextily
• mapboxgl
• geocoder
• tweepy
• netcdf4 (I think rioxarray covers this? but maybe it's needed as a back end)
• nltk
• textblob

As far as the jupyter environment, I am not sure if we need:

• autopep8 (really I'm just not sure it works with the new jupyter release?)
• ipython
• jupyter_contrib_nbextensions (again, I don't think this works with the new jupyter extension system)
• nbclean
• nbresuse

I've also removed matplotcheck. But we maybe should put that back in, because I have some testing utilities that I'm copying and pasting around that would be nice to automate, and that package might be a good spot to keep that stuff.

In addition:

• rasterstats could probably be replaced by zonal_statistics from xarray-spatial and built-in xarray interpolation tools
• regionmask is not super active. But it works last I checked, and I don't know of anything else that does the same thing.