really remove obsolete test_resample_loffset.patch

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=57

test_resample_loffset.patch

@@ -1,15 +0,0 @@
----
- xarray/tests/test_dataset.py |    2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/xarray/tests/test_dataset.py
-+++ b/xarray/tests/test_dataset.py
-@@ -3988,7 +3988,7 @@ class TestDataset:
-         expected_ = ds.bar.to_series().resample("24H").mean()
-         expected_.index += to_offset("-12H")
-         expected = DataArray.from_series(expected_)
--        assert_identical(actual, expected)
-+        assert_allclose(actual, expected)
- 
-     def test_resample_by_mean_discarding_attrs(self):
-         times = pd.date_range("2000-01-01", freq="6H", periods=10)