remove print statement

Author: JuliaSprenger

neo/test/iotest/common_io_test.py

@@ -494,6 +494,4 @@ def test_list_candidate_ios(self):
             entity = get_test_file_full_path(self.ioclass, filename=entity,
                                              directory=self.local_test_dir)
             ios = list_candidate_ios(entity)
-            if self.ioclass not in ios:
-                print(f'{entity} does not list {self.ioclass} in list of ios: {ios}')
             assert self.ioclass in ios