build

Redundant class cleanup #1892

Job	Run time
py38 (ubuntu)	12m 47s
py310 (ubuntu)	13m 22s
py310 (windows)	15m 16s
docs	1m 7s
check	40s
py39 (ubuntu)	12m 58s
py311 (macos)	9m 37s
py39 (windows)	14m 10s
py311 (windows)	16m 18s
py311 (ubuntu)	13m 0s
Deploy docs to GitHub Pages	0s
Upload coverage to Coveralls	0s
	1h 49m 15s

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