bug#4211: 23.1: [info] EasyPG refers to non-existing epa-mode

[Jari Aalto]

Info
    C-h i
    m Easy[TAB]         << EasyPG Assistant
    RET
    s epa-mode RET

    To install these features, do `C-u 1 M-x epa-mode'.  It can also be
    turned on by customize.  Try `M-x customize-variable epa-mode'.

No callable function epa-mode (neither variable):

    $ emacs -Q -nw
    C-h f epa-mode[TAB]
    epa-!-mode              << Cursor at -!-
    TAB

    Possible completions are:
    epa-global-mail-mode
    epa-mail-mode


    C-h v epa-mode
    <likewise, none found>

Jari