Resolve "Follow-up from "Adding dnest4 Sampler""

Requires !888 (merged) Closes #533 (closed)

test/core/sampler/dnest4_test.py

@@ -34,8 +34,6 @@ class TestDnest4(unittest.TestCase):
             beta=100, seed=None, verbose=True, outputfiles_basename=None,
             backend='memory'
         )
-        self.assertEqual([], self.sampler.kwargs["periodic"])
-        self.assertEqual([], self.sampler.kwargs["reflective"])
         for key in self.sampler.kwargs.keys():
             print(
                 "key={}, expected={}, actual={}".format(