meo: remove after being marked broken for over two years

It was marked in commit 5aa4b19946 by Linus Heckemann on 2019-10-07 (commited on 2019-10-08)

pkgs/tools/security/meo/default.nix

@@ -1,36 +0,0 @@
-{ lib, stdenv, fetchhg, openssl, pcre-cpp, qt4, boost, pkcs11helper }:
-
-stdenv.mkDerivation {
-  pname = "meo";
-  version = "unstable-2012-11-13";
-
-  src = fetchhg {
-    url = "http://oss.stamfest.net/hg/meo";
-    rev = "b48e5f16cff8";
-    sha256 = "0ifg7y28s89i9gwda6fyj1jbrykbcvq8bf1m6rxmdcv5afi3arbq";
-  };
-
-  buildFlags = [ "QMAKE=qmake" ];
-
-  buildInputs = [ openssl pcre-cpp qt4 boost pkcs11helper ];
-
-  preConfigure = ''
-    sed -i s,-mt$,, meo-gui/meo-gui.pro
-  '';
-
-  installPhase = ''
-    mkdir -p $out/bin
-    cp tools/{meo,p11} $out/bin
-    cp meo-gui/meo-gui $out/bin
-    cp meo-gui/meo-gui $out/bin
-  '';
-
-  meta = with lib; {
-    homepage = "http://oss.stamfest.net/wordpress/meo-multiple-eyepairs-only";
-    description = "Tools to use cryptography for things like four-eyes principles";
-    license = licenses.agpl3Plus;
-    maintainers = with maintainers; [ viric ];
-    platforms = platforms.linux;
-    broken = true;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -7956,10 +7956,6 @@ with pkgs;
 
   memtest86plus = callPackage ../tools/misc/memtest86+ { };
 
-  meo = callPackage ../tools/security/meo {
-    boost = boost155;
-  };
-
   mbutil = python3Packages.callPackage ../applications/misc/mbutil { };
 
   mc = callPackage ../tools/misc/mc {