TEST: remove atomicfile #2363

Job	Run time
asdf / Load tox environments	8s
third-party / Load tox environments	5s
astropy / Load tox environments	4s
stsci / Load tox environments	12s
astropy / asdf-astropy (ubuntu-latest)	2m 32s
astropy / specutils (ubuntu-latest)	1m 41s
third-party / weldx (ubuntu-latest)	2m 15s
third-party / sunpy (ubuntu-latest)	2m 20s
third-party / dkist (ubuntu-latest)	2m 41s
asdf / asdf-wcs-schemas (ubuntu-latest)	1m 13s
asdf / asdf-coordinates-schemas (ubuntu-latest)	1m 54s
stsci / gwcs (ubuntu-latest)	59s
stsci / jwst (ubuntu-latest)	19m 29s
stsci / stdatamodels (ubuntu-latest)	2m 25s
stsci / stpipe (ubuntu-latest)	36s
stsci / roman_datamodels (ubuntu-latest)	1m 12s
	39m 46s

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