Remove potential fitting jobs #916

Job	Run time
pyiron / commit-updated-env	9s
pyiron / benchmark-tests	3m 20s
pyiron / build-docs	3m 58s
pyiron / black	12s
pyiron / build-notebooks	9m 11s
pyiron / pip-check	3m 24s
pyiron / unit-tests (ubuntu-latest, 3.11)	3m 32s
pyiron / unit-tests (ubuntu-latest, 3.10)	3m 40s
pyiron / unit-tests (ubuntu-latest, 3.9)	3m 25s
pyiron / unit-tests (windows-latest, 3.11)	16m 34s
pyiron / unit-tests (macos-latest, 3.11)	5m 27s
pyiron / coveralls-and-codacy / Tests-and-Coverage	2m 5s
	54m 57s

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