clean up #593

Job	Run time
test (ubuntu-latest, 3.10, jax)	1m 30s
test (ubuntu-latest, 3.10, numpy)	1m 36s
test (ubuntu-latest, 3.10, tensorflow)	1m 43s
test (ubuntu-latest, 3.10, torch)	1m 41s
test (ubuntu-latest, 3.11, jax)	1m 33s
test (ubuntu-latest, 3.11, numpy)	1m 25s
test (ubuntu-latest, 3.11, tensorflow)	1m 41s
test (ubuntu-latest, 3.11, torch)	1m 41s
test (windows-latest, 3.10, jax)	1m 28s
test (windows-latest, 3.10, numpy)	1m 27s
test (windows-latest, 3.10, tensorflow)	1m 27s
test (windows-latest, 3.10, torch)	1m 27s
test (windows-latest, 3.11, jax)	1m 28s
test (windows-latest, 3.11, numpy)	1m 27s
test (windows-latest, 3.11, tensorflow)	1m 28s
test (windows-latest, 3.11, torch)	1m 26s
	24m 28s

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