CI: remove xfail in grouopby pandas-dev#40144

Author: fangchenli

pandas/tests/extension/base/groupby.py

@@ -75,10 +75,6 @@ def test_groupby_extension_apply(self, data_for_grouping, groupby_apply_op):
         df.groupby("A").apply(groupby_apply_op)
         df.groupby("A").B.apply(groupby_apply_op)
 
-    # Non-strict bc these xpass on dt64tz, Period, Interval, JSON, PandasArray
-    @pytest.mark.xfail(
-        is_numpy_dev, reason="2021-03-02 #40144 expecting fix in numpy", strict=False
-    )
     def test_groupby_apply_identity(self, data_for_grouping):
         df = pd.DataFrame({"A": [1, 1, 2, 2, 3, 3, 1, 4], "B": data_for_grouping})
         result = df.groupby("A").B.apply(lambda x: x.array)