Don't ignore missing/unreadable files in test cases (pylint)

tests.py

@@ -46,7 +46,6 @@ class YAMLTest(unittest.TestCase):
         test = None
         cfg = None
         ncount = 0
-        try:
         with open(self.yaml_filename, "r", encoding="utf-8") as file:
             for data in yaml.load_all(file, Loader=yaml.Loader):
                 if ncount == 0:
@@ -55,8 +54,6 @@ class YAMLTest(unittest.TestCase):
                 elif ncount == 1:
                     cfg = data
                     ncount += 1
-        except:
-            pass
         self.assertEqual(ncount, 2)
         self.assertIsNotNone(test)
         if not cfg: