DOC: consolidate pandas.Timedelta.to_pytimedelta docstring

Author: dcreekp

pandas/_libs/tslibs/timedeltas.pyx

@@ -841,25 +841,11 @@ cdef class _Timedelta(timedelta):
         TimedeltaIndex(['1 days 06:05:01.000030', '0 days 00:00:00.000015',
                        NaT],
                        dtype='timedelta64[ns]', freq=None)
+        >>> arr[1].to_pytimedelta()
+        datetime.timedelta(0, 0, 16)
         >>> arr.to_pytimedelta()
         array([datetime.timedelta(1, 21901, 30), datetime.timedelta(0, 0, 16),
         NaT], dtype=object)
-
-        Loss of nanosecond resolution:
-
-        >>> diff = pd.to_timedelta('1 days 06:05:01.00003')
-        >>> diff
-        Timedelta('1 days 06:05:01.000030')
-        >>> diff.delta
-        108301000030000
-        >>> diff += np.timedelta64(22, 'ns')
-        >>> diff.delta
-        108301000030022
-        >>> py_diff = diff.to_pytimedelta()
-        >>> py_diff
-        datetime.timedelta(1, 21901, 30)
-        >>> pd.to_timedelta(py_diff).delta
-        108301000030000
         """
         return timedelta(microseconds=int(self.value) / 1000)