gh-159661: Remove incorrect traceback colorization documentation (#159668)

Doc/library/traceback.rst

diff --git a/Doc/library/traceback.rst b/Doc/library/traceback.rst
index aa48cea..8f167eb 100644
--- a/Doc/library/traceback.rst
+++ b/Doc/library/traceback.rst
@@ -44,10 +44,6 @@
   necessary for later formatting without holding references to actual exception
   and traceback objects.
 
-.. versionadded:: 3.13
-   Output is colorized by default and can be
-   :ref:`controlled using environment variables <using-on-controlling-color>`.
-
 
 Module-Level Functions
 ----------------------