tests

Remove redundant py2 helper code #998

Job	Run time
Run pre-commit	10s
Pip tests on ubuntu-latest with Python 3.10	53m 0s
Tests on ubuntu-latest with Python 3.9	47m 36s
Pip tests on macos-latest with Python 3.10	1h 1m 6s
Tests on ubuntu-latest with Python 3.10	49m 35s
Tests on ubuntu-latest with Python 3.11	52m 17s
Tests on macos-latest with Python 3.9	56m 53s
Tests on macos-latest with Python 3.10	1h 3m 6s
Tests on macos-latest with Python 3.11	1h 24m 23s
Tests on windows-latest with Python 3.9	51m 21s
Tests on windows-latest with Python 3.10	59m 22s
Tests on windows-latest with Python 3.11	1h 16m 35s
	10h 55m 24s

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