removed xfail for issue 31883

Refer to pandas-dev#31883

Author: devjeetr

pandas/tests/indexes/multi/test_indexing.py

@@ -408,10 +408,6 @@ def test_get_loc_nan(self, level, nulls_fixture):
         key = ["b", "d"]
         levels[level] = np.array([0, nulls_fixture], dtype=type(nulls_fixture))
         key[level] = nulls_fixture
-
-        if nulls_fixture is pd.NA:
-            pytest.xfail("MultiIndex from pd.NA in np.array broken; see GH 31883")
-
         idx = MultiIndex.from_product(levels)
         assert idx.get_loc(tuple(key)) == 3