Remove setup.py (#842) #1303

Job	Run time
Python 3.7 on macos-13	1m 27s
pep8,packaging on linux, Rust stable	1m 1s
py312 on alpine	1m 3s
mypy on linux, Rust stable	36s
Python 3.7 on win32	3m 15s
py312 on alpine:aarch64	1m 14s
Python 3.12 on macos-13	51s
py37 on linux, Rust stable	35s
Python 3.12 on win32	3m 16s
py312 on ubuntu-rolling:aarch64	54s
Python 3.12 on macos-latest	33s
py38 on linux, Rust stable	39s
Python 3.7 on win64	2m 12s
py39 on linux, Rust stable	33s
Python 3.12 on win64	2m 12s
py310 on linux, Rust stable	31s
py311 on linux, Rust stable	32s
py312 on linux, Rust stable	34s
py313 on linux, Rust stable	58s
pypy3 on linux, Rust stable	49s
pypy3 on linux, Rust stable	56s
py312 on linux, Rust 1.64.0	2m 29s
py312 on linux, Rust beta	45s
py312 on linux, Rust nightly	43s
all-green	2s
	28m 40s

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