DOC: remove api change entry for reverted change

tacaswell · tacaswell · commit b8234969ea95 · 2017-10-06T19:45:03.000-04:00
diff --git a/doc/api/api_changes.rst b/doc/api/api_changes.rst
@@ -226,18 +226,6 @@ NavigationToolbar2.dynamic_update is deprecated
 Use `FigureCanvas.draw_idle` instead.
 
 
-Unique identifier added to `RendererBase` classes
--------------------------------------------------
-
-Since ``id()`` is not guaranteed to be unique between objects that exist at
-different times, a new private property ``_uid`` has been added to
-`RendererBase` which is used along with the renderer's ``id()`` to cache
-certain expensive operations.
-
-If a custom renderer does not subclass `RendererBase` or `MixedModeRenderer`,
-it is not required to implement this ``_uid`` property, but this may produce
-incorrect behavior when the renderers' ``id()`` clashes.
-
 
 WX no longer calls generates ``IdleEvent`` events or calls ``idle_event``
 -------------------------------------------------------------------------
