Removed post-link and pre-unlink scripts #4698

Job	Run time
build_linux (3.9)	33m 12s
build_windows (3.9)	1h 5m 34s
build_linux (3.10)	32m 45s
build_windows (3.10)	1h 9m 11s
build_linux (3.11)	33m 11s
build_windows (3.11)	1h 9m 15s
build_linux (3.12)	33m 25s
build_windows (3.12)	1h 6m 34s
test_examples_linux (3.11, false, ubuntu-22.04)	6m 46s
test_linux (3.9, false, ubuntu-22.04)	10m 43s
array-api-conformity (3.10, false, ubuntu-22.04)	4m 42s
test_linux (3.10, false, ubuntu-22.04)	9m 15s
test_linux (3.11, false, ubuntu-22.04)	9m 41s
test_linux (3.12, false, ubuntu-22.04)	9m 33s
upload_linux	0s
test_windows (3.9, false, windows-2019)	14m 3s
test_windows (3.10, false, windows-2019)	14m 2s
test_windows (3.11, false, windows-2019)	14m 10s
test_windows (3.12, false, windows-2019)	13m 9s
upload_windows	0s
Clean up anaconda packages	0s
	8h 29m 11s

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