pythongh-94172: Update keyfile removal documentation (python#105392)

Remove the "deprecated:: 3.6" markup, since the parameters (like
keyfile and certfile) got removed in Python 3.12.

Author: vstinner

Doc/library/ftplib.rst

@@ -107,20 +107,14 @@ The module defines the following items:
       :attr:`ssl.SSLContext.check_hostname` and *Server Name Indication* (see
       :data:`ssl.HAS_SNI`).
 
-   .. deprecated:: 3.6
-       *keyfile* and *certfile* are deprecated in favor of *context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
    .. versionchanged:: 3.9
       If the *timeout* parameter is set to be zero, it will raise a
       :class:`ValueError` to prevent the creation of a non-blocking socket.
       The *encoding* parameter was added, and the default was changed from
       Latin-1 to UTF-8 to follow :rfc:`2640`.
 
    .. versionchanged:: 3.12
-       The deprecated *keyfile* and *certfile* parameters have been removed.
+      The deprecated *keyfile* and *certfile* parameters have been removed.
 
    Here's a sample session using the :class:`FTP_TLS` class::
 

Doc/library/http.client.rst

@@ -95,16 +95,6 @@ The module provides the following classes:
       :func:`ssl._create_unverified_context` can be passed to the *context*
       parameter.
 
-   .. deprecated:: 3.6
-       *key_file* and *cert_file* are deprecated in favor of *context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
-       The *check_hostname* parameter is also deprecated; the
-       :attr:`ssl.SSLContext.check_hostname` attribute of *context* should
-       be used instead.
-
    .. versionchanged:: 3.8
       This class now enables TLS 1.3
       :attr:`ssl.SSLContext.post_handshake_auth` for the default *context* or
@@ -116,8 +106,8 @@ The module provides the following classes:
       ALPN protocols with :meth:`~ssl.SSLContext.set_alpn_protocol`.
 
    .. versionchanged:: 3.12
-       The deprecated *key_file*, *cert_file* and *check_hostname* parameters
-       have been removed.
+      The deprecated *key_file*, *cert_file* and *check_hostname* parameters
+      have been removed.
 
 
 .. class:: HTTPResponse(sock, debuglevel=0, method=None, url=None)

Doc/library/imaplib.rst

@@ -108,18 +108,11 @@ There's also a subclass for secure connections:
       :attr:`ssl.SSLContext.check_hostname` and *Server Name Indication* (see
       :data:`ssl.HAS_SNI`).
 
-   .. deprecated:: 3.6
-
-       *keyfile* and *certfile* are deprecated in favor of *ssl_context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
    .. versionchanged:: 3.9
       The optional *timeout* parameter was added.
 
    .. versionchanged:: 3.12
-       The deprecated *keyfile* and *certfile* parameters have been removed.
+      The deprecated *keyfile* and *certfile* parameters have been removed.
 
 The second subclass allows for connections created by a child process:
 

Doc/library/poplib.rst

@@ -79,19 +79,12 @@ The :mod:`poplib` module provides two classes:
       :attr:`ssl.SSLContext.check_hostname` and *Server Name Indication* (see
       :data:`ssl.HAS_SNI`).
 
-   .. deprecated:: 3.6
-
-       *keyfile* and *certfile* are deprecated in favor of *context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
    .. versionchanged:: 3.9
       If the *timeout* parameter is set to be zero, it will raise a
       :class:`ValueError` to prevent the creation of a non-blocking socket.
 
    .. versionchanged:: 3.12
-       The deprecated *keyfile* and *certfile* parameters have been removed.
+      The deprecated *keyfile* and *certfile* parameters have been removed.
 
 One exception is defined as an attribute of the :mod:`poplib` module:
 

Doc/library/smtplib.rst

@@ -100,19 +100,12 @@ Protocol) and :rfc:`1869` (SMTP Service Extensions).
       :attr:`ssl.SSLContext.check_hostname` and *Server Name Indication* (see
       :data:`ssl.HAS_SNI`).
 
-   .. deprecated:: 3.6
-
-       *keyfile* and *certfile* are deprecated in favor of *context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
    .. versionchanged:: 3.9
       If the *timeout* parameter is set to be zero, it will raise a
       :class:`ValueError` to prevent the creation of a non-blocking socket
 
    .. versionchanged:: 3.12
-       The deprecated *keyfile* and *certfile* parameters have been removed.
+      The deprecated *keyfile* and *certfile* parameters have been removed.
 
 .. class:: LMTP(host='', port=LMTP_PORT, local_hostname=None, \
                 source_address=None[, timeout])
@@ -407,15 +400,8 @@ An :class:`SMTP` instance has the following methods:
    If there has been no previous ``EHLO`` or ``HELO`` command this session,
    this method tries ESMTP ``EHLO`` first.
 
-   .. deprecated:: 3.6
-
-       *keyfile* and *certfile* are deprecated in favor of *context*.
-       Please use :meth:`ssl.SSLContext.load_cert_chain` instead, or let
-       :func:`ssl.create_default_context` select the system's trusted CA
-       certificates for you.
-
    .. versionchanged:: 3.12
-       The deprecated *keyfile* and *certfile* parameters have been removed.
+      The deprecated *keyfile* and *certfile* parameters have been removed.
 
    :exc:`SMTPHeloError`
       The server didn't reply properly to the ``HELO`` greeting.