Remove failing test_add_duplicate_field from suite

Already have test_fieldset_add_field_already_exists in v4 suite.

Author: VeckoTheGecko

tests/test_fieldset.py

@@ -231,22 +231,6 @@ def test_add_field(xdim, ydim, tmpdir):
     assert fieldset.newfld.data.shape == fieldset.U.data.shape
 
 
-@pytest.mark.v4alpha
-@pytest.mark.xfail(reason="GH1946")
-@pytest.mark.parametrize("dupobject", ["same", "new"])
-def test_add_duplicate_field(dupobject):
-    data, dimensions = generate_fieldset_data(100, 100)
-    fieldset = FieldSet.from_data(data, dimensions)  # TODO : Remove from_data
-    field = Field("newfld", fieldset.U.data, lon=fieldset.U.lon, lat=fieldset.U.lat)
-    fieldset.add_field(field)
-    with pytest.raises(RuntimeError):
-        if dupobject == "same":
-            fieldset.add_field(field)
-        elif dupobject == "new":
-            field2 = Field("newfld", np.ones((2, 2)), lon=np.array([0, 1]), lat=np.array([0, 2]))
-            fieldset.add_field(field2)
-
-
 @pytest.mark.v4alpha
 @pytest.mark.xfail(reason="GH1946")
 @pytest.mark.parametrize("fieldtype", ["normal", "vector"])