whatsnew update

Author: reidy-p

doc/source/whatsnew/v0.23.0.txt

@@ -777,44 +777,6 @@ Note that this change also applies to :meth:`DataFrame.append`, which has also r
 
 .. _whatsnew_0230.api_breaking.build_changes:
 
-.. _whatsnew_0230.api_breaking.end_time:
-
-Time values in ``dt.end_time`` and ``to_timestamp(how='end')``
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-The time values in :class:`Period` and :class:`PeriodIndex` objects are now set
-to '23:59:59.999999999' when calling :attr:`Series.dt.end_time`, :attr:`Period.end_time`,
-:attr:`PeriodIndex.end_time`, :func:`Period.to_timestamp()` with ``how='end'``,
-or :func:`PeriodIndex.to_timestamp()` with ``how='end'`` (:issue:`17157`)
-
-Previous Behavior:
-
-.. code-block:: ipython
-
-   In [2]: p = pd.Period('2017-01-01', 'D')
-   In [3]: pi = pd.PeriodIndex([p])
-
-   In [4]: pd.Series(p).dt.end_time[0]
-   Out[4]: Timestamp(2017-01-01 00:00:00)
-
-   In [5]: pi.end_time[0]
-   Out[5]: Timestamp(2017-01-01 00:00:00)
-
-   In [6]: pi.to_timestamp(how='end')
-   Out[6]: Timestamp(2017-01-01 00:00:00)
-
-.. ipython:: python
-
-   p = pd.Period('2017-01-01', 'D')
-   pi = pd.PeriodIndex([p])
-
-   pd.Series(p).dt.end_time[0]
-
-   pi.end_time[0]
-
-   pi.to_timestamp(how='end')
-
-
 Build Changes
 ^^^^^^^^^^^^^