remove mutt-kz: deprecated in favor of neomutt

Removed reference in all-packages.nix. Fixes #20952.

pkgs/applications/networking/mailreaders/mutt-kz/default.nix

@@ -1,64 +0,0 @@
-{ stdenv, fetchurl, ncurses, which, perl, autoreconfHook, autoconf, automake, notmuch
-, sslSupport ? true
-, imapSupport ? true
-, headerCache ? true
-, saslSupport ? true
-, gpgmeSupport ? true
-, gdbm ? null
-, openssl ? null
-, cyrus_sasl ? null
-, gpgme ? null
-}:
-
-assert headerCache -> gdbm != null;
-assert sslSupport -> openssl != null;
-assert saslSupport -> cyrus_sasl != null;
-assert gpgmeSupport -> gpgme != null;
-
-let
-  version = "1.5.23.1";
-in
-stdenv.mkDerivation rec {
-  name = "mutt-kz-${version}";
-
-  src = fetchurl {
-    url = "https://github.com/karelzak/mutt-kz/archive/v${version}.tar.gz";
-    sha256 = "01k4hrf8x2100pcqnrm61mm1x0pqi2kr3rx22k5hwvbs1wh8zyhz";
-  };
-
-  buildInputs = with stdenv.lib;
-    [ ncurses which perl autoreconfHook autoconf automake notmuch]
-    ++ optional headerCache gdbm
-    ++ optional sslSupport openssl
-    ++ optional saslSupport cyrus_sasl
-    ++ optional gpgmeSupport gpgme;
-
-configureFlags = [
-    "--with-mailpath=" "--enable-smtp"
-
-    # This allows calls with "-d N", that output debug info into ~/.muttdebug*
-    "--enable-debug"
-
-    "--enable-pop" "--enable-imap"
-
-    "--enable-notmuch"
-
-    # The next allows building mutt without having anything setgid
-    # set by the installer, and removing the need for the group 'mail'
-    # I set the value 'mailbox' because it is a default in the configure script
-    "--with-homespool=mailbox"
-    (if headerCache then "--enable-hcache" else "--disable-hcache")
-    (if sslSupport then "--with-ssl" else "--without-ssl")
-    (if imapSupport then "--enable-imap" else "--disable-imap")
-    (if saslSupport then "--with-sasl" else "--without-sasl")
-    (if gpgmeSupport then "--enable-gpgme" else "--disable-gpgme")
-  ];
-
-  meta = with stdenv.lib; {
-    description = "A small but very powerful text-based mail client, forked to support notmuch";
-    homepage = https://github.com/karelzak/mutt-kz/;
-    license = stdenv.lib.licenses.gpl2Plus;
-    platforms = platforms.unix;
-    maintainers = with maintainers; [ magnetophon ];
-  };
-}

pkgs/top-level/all-packages.nix

@@ -14025,8 +14025,6 @@ in
     withSidebar = true;
   };
 
-  mutt-kz = callPackage ../applications/networking/mailreaders/mutt-kz { };
-
   neomutt = callPackage ../applications/networking/mailreaders/neomutt { };
 
   notion = callPackage ../applications/window-managers/notion { };