TST: Remove fixed xfail

unittests/test_table_importer.py

@@ -80,7 +80,6 @@ class ConverterTest(unittest.TestCase):
             r"\this\computer,\this\computer"),
             ["/this/computer", "/this/computer"])
 
-    @pytest.mark.xfail(reason="To be fixed, see Issue #34")
     def test_datetime(self):
         test_file = os.path.join(os.path.dirname(__file__), "date.xlsx")
         importer = XLSImporter(converters={'d': datetime_converter,
@@ -220,7 +219,8 @@ class XLSImporterTest(TableImporterTest):
                                    "int_as_int": int,
         }
         )
-        df = importer.read_xls(os.path.join(os.path.dirname(__file__), "data", "datatypes.xlsx"))
+        df = importer.read_xls(os.path.join(
+            os.path.dirname(__file__), "data", "datatypes.xlsx"))
         assert np.issubdtype(df.loc[0, "int_as_float"], float)