Remove nextflow version.

workflow/tests/test_generate_software_references.py

@@ -13,11 +13,6 @@ def test_software_references():
     assert os.path.exists(os.path.join(test_output_path, 'software_references_mqc.txt'))
 
 
-@pytest.mark.singleend
-def test_nextflow_version():
-    assert os.path.exists(os.path.join(test_output_path, 'version_nextflow.txt'))
-
-
 @pytest.mark.singleend
 def test_software_versions():
     assert os.path.exists(os.path.join(test_output_path, 'software_versions_mqc.yaml'))