Clean docs and (unused) API #819

Job	Run time
Test Docs	34s
Test Linting	22s
Build sdist	32s
Build wheels on ubuntu-latest	1m 20s
Build wheels on windows-latest	3m 59s
Build wheels on macos-latest	2m 51s
Test Codegen	52s
Test Linux py37	1m 1s
Test Examples	1m 14s
Test Linux py38	1m 18s
Test Imports	19s
Test Linux py39	58s
Test PyInstaller	1m 38s
Test Linux py310	51s
Test Linux py311	1m 12s
Publish to Github and Pypi	0s
	19m 1s

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