Remove check on missing file, code was build with bad hypothesis #495

Job	Run time
Run py eddy tracker build tests (ubuntu-latest, 3.10)	39s
Run py eddy tracker build tests (ubuntu-latest, 3.11)	36s
Run py eddy tracker build tests (ubuntu-latest, 3.12)	37s
Run py eddy tracker build tests (windows-latest, 3.10)	2m 7s
Run py eddy tracker build tests (windows-latest, 3.11)	2m 7s
Run py eddy tracker build tests (windows-latest, 3.12)	2m 23s
	8m 29s

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