Remove TODO in cycle_species.py

src/sage/combinat/species/cycle_species.py

@@ -178,30 +178,6 @@ def _isotypes(self, structure_class, labels):
         if len(labels) != 0:
             yield structure_class(self, labels, range(1, len(labels)+1))
 
-    def _gs_iterator(self, base_ring):
-        r"""
-        The generating series for cyclic permutations is
-        `-\log(1-x) = \sum_{n=1}^\infty x^n/n`.
-
-        EXAMPLES::
-
-            sage: P = species.CycleSpecies()
-            sage: g = P.generating_series()
-            sage: g.coefficients(10)
-            [0, 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9]
-
-        TESTS::
-
-            sage: P = species.CycleSpecies()
-            sage: g = P.generating_series(RR)
-            sage: g.coefficients(3)
-            [0.000000000000000, 1.00000000000000, 0.500000000000000]
-        """
-        one = base_ring(1)
-        yield base_ring(0)
-        for n in _integers_from(ZZ(1)):
-            yield self._weight*one/n
-
     def _order(self):
         """
         Returns the order of the generating series.
@@ -214,8 +190,7 @@ def _order(self):
         """
         return 1
 
-    # TODO: Figure out why this isn't working!
-    class GeneratingSeriesStream2(SpeciesSeriesStream):
+    class GeneratingSeriesStream(SpeciesSeriesStream):
         def compute(self, n):
             r"""
             The generating series for cyclic permutations is