Update azure-kusto-data/tests/test_helpers.py

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: AsafMah

azure-kusto-data/tests/test_helpers.py

@@ -161,9 +161,6 @@ def test_parse_datetime():
     assert result_v1[0] == pandas.Timestamp(year=2023, month=12, day=12, hour=1, minute=59, second=59, microsecond=352000, tz="UTC")
     assert result_v1[1] == pandas.Timestamp(year=2023, month=12, day=12, hour=1, minute=54, second=44, tz="UTC")
     # Test with actual pandas version (no force)
-    df_actual = pandas.DataFrame({
-        "mixed": ["2023-12-12T01:59:59.352Z", "2023-12-12T01:54:44Z"],
-    })
     result_actual = parse_datetime(df_actual, "mixed")
     df_actual = pandas.DataFrame(
         {