[3.14] gh-119740: Remove obsoleted removal announce for trunc delegation (GH-144622) (GH-144624)

This was done in GH-119743 (3.14).
(cherry picked from commit aa6ed80)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>

Author: miss-islington

Doc/deprecations/pending-removal-in-future.rst

@@ -35,7 +35,6 @@ although there is currently no date scheduled for their removal.
   * Support for ``__complex__()`` method returning a strict subclass of
     :class:`complex`: these methods will be required to return an instance of
     :class:`complex`.
-  * Delegation of ``int()`` to ``__trunc__()`` method.
   * Passing a complex number as the *real* or *imag* argument in the
     :func:`complex` constructor is now deprecated; it should only be passed
     as a single positional argument.