remove legacy test

Author: methane

Lib/test/test_dict.py

@@ -1030,21 +1030,6 @@ def __init__(self, order):
         d.update(o.__dict__)
         self.assertEqual(list(d), ["c", "b", "a"])
 
-    @support.cpython_only
-    def test_splittable_to_generic_combinedtable(self):
-        """split table must be correctly resized and converted to generic combined table"""
-        class C:
-            pass
-
-        a = C()
-        a.x = 1
-        d = a.__dict__
-        before_resize = sys.getsizeof(d)
-        d[2] = 2 # split table is resized to a generic combined table
-
-        self.assertGreater(sys.getsizeof(d), before_resize)
-        self.assertEqual(list(d), ['x', 2])
-
     def test_iterator_pickling(self):
         for proto in range(pickle.HIGHEST_PROTOCOL + 1):
             data = {1:"a", 2:"b", 3:"c"}