flvtool2: remove (broken since 2018)

pkgs/tools/video/flvtool2/default.nix

@@ -1,17 +0,0 @@
-{ lib, buildRubyGem, ruby }:
-
-buildRubyGem rec {
-  inherit ruby;
-  name = "${gemName}-${version}";
-  gemName = "flvtool2";
-  version = "1.0.6";
-  source.sha256 = "0xsla1061pi4ryh3jbvwsbs8qchprchbqjy7652g2g64v37i74qj";
-
-  meta = {
-    broken = true; # depends on ruby 2.2
-    homepage = "https://github.com/unnu/flvtool2";
-    description = "A tool to manipulate Macromedia Flash Video files";
-    platforms = ruby.meta.platforms;
-    license = lib.licenses.bsd3;
-  };
-}

pkgs/top-level/aliases.nix

@@ -141,6 +141,7 @@ mapAliases ({
 
   firestr = throw "firestr has been removed."; # added 2019-12-08
   flameGraph = flamegraph; # added 2018-04-25
+  flvtool2 = throw "flvtool2 has been removed."; # added 2020-11-03
   foldingathome = fahclient; # added 2020-09-03
   font-awesome-ttf = font-awesome; # 2018-02-25
   # 2019-10-31

pkgs/top-level/all-packages.nix

@@ -3878,8 +3878,6 @@ in
 
   flips = callPackage ../tools/compression/flips { };
 
-  flvtool2 = callPackage ../tools/video/flvtool2 { };
-
   fmbt = callPackage ../development/tools/fmbt {
     python = python2;
   };