mht2htm: remove after being marked broken for over two years

It was marked in commit 9768b0457a by xeji on 2018-04-11 (commited on 2018-04-12)

pkgs/tools/misc/mht2htm/default.nix

@@ -1,44 +0,0 @@
-{ lib, stdenv, fetchurl, unzip, fpc, lazarus }:
-
-let
-  date = "07.apr.2016";
-
-in stdenv.mkDerivation rec {
-  pname = "mht2mht";
-  version = "1.8.1.35";
-
-  src = fetchurl {
-    # there is a disconnect between the directory name date and file name date
-    # you should verify if that is still then case when the next version is released
-    url    = "mirror://sourceforge/mht2htm/mht2htm/1.8.1%20%2805.apr.2016%29/mht2htmcl-${version}_${date}.source.zip";
-    sha256 = "16r6zkihp84yqllp2hyaf0nvymdn9ji3g30mc5scfwycdfanja6f";
-  };
-
-  sourceRoot = ".";
-
-  buildInputs = [ fpc lazarus ];
-
-  nativeBuildInputs = [ unzip ];
-
-  buildPhase = ''
-    runHook preBuild
-    lazbuild --lazarusdir=${lazarus}/share/lazarus mht2htmcl.lpi
-    runHook postBuild
-  '';
-
-  installPhase = ''
-    runHook preInstall
-    install -Dm755 -t $out/bin               mht2htmcl
-    install -Dm644 -t $out/share/doc/mht2htm CHANGELOG COPYING README
-    runHook postInstall
-  '';
-
-  meta = with lib; {
-    description = "Convert .mht files to .html";
-    homepage    = "http://pgm.bpalanka.com/mht2htm.html";
-    license     = licenses.gpl3;
-    maintainers = with maintainers; [ peterhoeg ];
-    platforms   = platforms.all;
-    broken = true; # 2018-04-11
-  };
-}

pkgs/top-level/all-packages.nix

@@ -595,8 +595,6 @@ with pkgs;
 
   broadlink-cli = callPackage ../tools/misc/broadlink-cli {};
 
-  mht2htm = callPackage ../tools/misc/mht2htm { };
-
   fetchpatch = callPackage ../build-support/fetchpatch { }
     // {
       tests = pkgs.tests.fetchpatch;