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diff --git a/lisp/gnus/password.el b/lisp/gnus/password.el
deleted file mode 100644
index 0d478774902..00000000000
--- a/lisp/gnus/password.el
+++ /dev/null
@@ -1,141 +0,0 @@
-;;; password.el --- Read passwords from user, possibly using a password cache.
-
-;; Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007
-;;   Free Software Foundation, Inc.
-
-;; Author: Simon Josefsson <simon@josefsson.org>
-;; Created: 2003-12-21
-;; Keywords: password cache passphrase key
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;; Greatly influenced by pgg.el written by Daiki Ueno, with timer
-;; fixes for XEmacs by Katsumi Yamaoka.  In fact, this is mostly just
-;; a rip-off.
-;;
-;; (password-read "Password? " "test")
-;; ;; Minibuffer prompt for password.
-;;  => "foo"
-;;
-;; (password-cache-add "test" "foo")
-;;  => nil
-
-;; Note the previous two can be replaced with:
-;; (password-read-and-add "Password? " "test")
-;; ;; Minibuffer prompt for password.
-;; => "foo"
-;; ;; "foo" is now cached with key "test"
-
-
-;; (password-read "Password? " "test")
-;; ;; No minibuffer prompt
-;;  => "foo"
-;;
-;; (password-read "Password? " "test")
-;; ;; No minibuffer prompt
-;;  => "foo"
-;;
-;; ;; Wait `password-cache-expiry' seconds.
-;;
-;; (password-read "Password? " "test")
-;; ;; Minibuffer prompt for password is back.
-;;  => "foo"
-
-;;; Code:
-
-(eval-when-compile
-  (require 'cl))
-
-(defcustom password-cache t
-  "Whether to cache passwords."
-  :group 'password
-  :type 'boolean)
-
-(defcustom password-cache-expiry 16
-  "How many seconds passwords are cached, or nil to disable expiring.
-Whether passwords are cached at all is controlled by `password-cache'."
-  :group 'password
-  :type '(choice (const :tag "Never" nil)
-                 (integer :tag "Seconds")))
-
-(defvar password-data (make-vector 7 0))
-
-(defun password-read-from-cache (key)
-  "Obtain passphrase for KEY from time-limited passphrase cache.
-Custom variables `password-cache' and `password-cache-expiry'
-regulate cache behavior."
-  (and password-cache
-       key
-       (symbol-value (intern-soft key password-data))))
-
-(defun password-read (prompt &optional key)
-  "Read password, for use with KEY, from user, or from cache if wanted.
-KEY indicate the purpose of the password, so the cache can
-separate passwords.  The cache is not used if KEY is nil.  It is
-typically a string.
-The variable `password-cache' control whether the cache is used."
-  (or (password-read-from-cache key)
-      (read-passwd prompt)))
-
-(defun password-read-and-add (prompt &optional key)
-  "Read password, for use with KEY, from user, or from cache if wanted.
-Then store the password in the cache.  Uses `password-read' and
-`password-cache-add'.
-Custom variables `password-cache' and `password-cache-expiry'
-regulate cache behavior."
-  (let ((password (password-read prompt key)))
-    (when (and password key)
-      (password-cache-add key password))
-    password))
-
-(defun password-cache-remove (key)
-  "Remove password indexed by KEY from password cache.
-This is typically run be a timer setup from `password-cache-add',
-but can be invoked at any time to forcefully remove passwords
-from the cache.  This may be useful when it has been detected
-that a password is invalid, so that `password-read' query the
-user again."
-  (let ((password (symbol-value (intern-soft key password-data))))
-    (when password
-      (if (fboundp 'clear-string)
-          (clear-string password)
-        (fillarray password ?_))
-      (unintern key password-data))))
-
-(defun password-cache-add (key password)
-  "Add password to cache.
-The password is removed by a timer after `password-cache-expiry'
-seconds."
-  (when (and password-cache-expiry (null (intern-soft key password-data)))
-    (run-at-time password-cache-expiry nil
-                 #'password-cache-remove
-                 key))
-  (set (intern key password-data) password)
-  nil)
-
-(defun password-reset ()
-  "Clear the password cache."
-  (interactive)
-  (fillarray password-data 0))
-
-(provide 'password)
-
-;;; arch-tag: ab160494-16c8-4c68-a4a1-73eebf6686e5
-;;; password.el ends here