TST: xfail statsmodels downstream test

xref gh-18362.

Author: gfyoung

pandas/tests/test_downstream.py

@@ -53,6 +53,7 @@ def test_xarray(df):
     assert df.to_xarray() is not None
 
 
+@pytest.mark.xfail(reason="statsmodels needs to remove reference to WidePanel")
 def test_statsmodels():
 
     statsmodels = import_module('statsmodels')  # noqa

pandas/tests/test_panel.py

@@ -2147,9 +2147,6 @@ def test_multiindex_get(self):
             assert (f1.items == [1, 2]).all()
             assert (f2.items == [1, 2]).all()
 
-            MultiIndex.from_tuples([('a', 1), ('a', 2), ('b', 1)],
-                                   names=['first', 'second'])
-
     def test_multiindex_blocks(self):
         with catch_warnings(record=True):
             ind = MultiIndex.from_tuples([('a', 1), ('a', 2), ('b', 1)],