[3.15] gh-159661: Remove incorrect traceback colorization documentation (GH-159668) (#159670)

gh-159661: Remove incorrect traceback colorization documentation (GH-159668)
(cherry picked from commit b00a140)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>

Author: miss-islington

Doc/library/traceback.rst

@@ -44,10 +44,6 @@ The module's API can be divided into two parts:
   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
 ----------------------