lighttable: Remove

Last updated in 2016, depends on deprecated gnome2 and fails to start
without warning/error:

```
$ lighttable ; echo $?
0
$ coredumpctl list -1
TIME                           PID  UID GID SIG     COREFILE EXE                                                                                       SIZE
Wed 2022-06-15 12:24:50 EET 501223 1000 100 SIGSEGV present  /nix/store/9kk7yx3n7a896x40ypr7w4kzya8b0mc9-lighttable-0.8.1/share/LightTable/LightTable 71.4M
```

See #39976.

pkgs/applications/editors/lighttable/default.nix

@@ -1,65 +0,0 @@
-{ stdenv, lib, fetchurl, zlib, glib, alsa-lib, makeDesktopItem
-, dbus, gtk2, atk, pango, freetype, fontconfig, libgnome-keyring3, gdk-pixbuf
-, cairo, cups, expat, libgpg-error, nspr, gnome2, nss, xorg, systemd, libnotify
-}:
-
-let
-  libPath = lib.makeLibraryPath [
-      stdenv.cc.cc zlib glib dbus gtk2 atk pango freetype libgnome-keyring3 nss
-      fontconfig gdk-pixbuf cairo cups expat libgpg-error alsa-lib nspr gnome2.GConf
-      xorg.libXrender xorg.libX11 xorg.libXext xorg.libXdamage xorg.libXtst
-      xorg.libXcomposite xorg.libXi xorg.libXfixes libnotify xorg.libXrandr
-      xorg.libXcursor
-  ];
-  desktopItem = makeDesktopItem {
-    name = "LightTable";
-    exec = "light";
-    comment = "LightTable";
-    desktopName = "LightTable";
-    genericName = "the next generation code editor";
-  };
-in
-
-stdenv.mkDerivation rec {
-  pname = "lighttable";
-  version = "0.8.1";
-
-  src =
-      fetchurl {
-        name = "LightTableLinux64.tar.gz";
-        url = "https://github.com/LightTable/LightTable/releases/download/${version}/${pname}-${version}-linux.tar.gz";
-        sha256 = "06fj725xfhf3fwrf7dya7ijmxq3v76kfmd4lr2067a92zhlwr5pv";
-      };
-
-  dontConfigure = true;
-
-  installPhase = ''
-    tar xf ${src}
-    mkdir -p $out/{bin,share/LightTable}
-    mv ./${pname}-${version}-linux/* $out/share/LightTable
-
-    patchelf \
-      --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
-      --set-rpath ${libPath}:${libPath}/lib64:$out/share/LightTable \
-      $out/share/LightTable/LightTable
-
-    mv $out/share/LightTable/light $out/bin/light
-
-    ln -sf ${lib.getLib systemd}/lib/libudev.so.1 $out/share/LightTable/libudev.so.0
-    substituteInPlace $out/bin/light \
-        --replace "/usr/lib/x86_64-linux-gnu" "${lib.getLib systemd}/lib" \
-        --replace "/lib/x86_64-linux-gnu" "$out/share/LightTable" \
-        --replace 'HERE=`dirname $(readlink -f $0)`' "HERE=$out/share/LightTable"
-
-    mkdir -p "$out"/share/applications
-    cp "${desktopItem}/share/applications/LightTable.desktop" "$out"/share/applications/
-  '';
-
-  meta = with lib; {
-    description = "The next generation code editor";
-    homepage = "http://www.lighttable.com/";
-    license = licenses.gpl3;
-    maintainers = [ maintainers.matejc ];
-    platforms = [ "x86_64-linux" ];
-  };
-}

pkgs/top-level/aliases.nix

@@ -740,6 +740,7 @@ mapAliases ({
   libva1-full = throw "'libva1-full' has been renamed to/replaced by 'libva1'"; # Converted to throw 2022-02-22
   libwnck3 = libwnck;
   lighthouse = throw "lighthouse has been removed: abandoned by upstream"; # Added 2022-04-24
+  lighttable = throw "'lighttable' crashes (SIGSEGV) on startup, has not been updated in years and depends on deprecated GTK2"; # Added 2022-06-15
   lilypond-unstable = lilypond; # Added 2021-03-11
   lilyterm = throw "lilyterm has been removed from nixpkgs, because it was relying on a vte version that depended on python2"; # Added 2022-01-14
   lilyterm-git = throw "lilyterm-git has been removed from nixpkgs, because it was relying on a vte version that depended on python2"; # Added 2022-01-14

pkgs/top-level/all-packages.nix

@@ -27946,8 +27946,6 @@ with pkgs;
 
   lighthouse-steamvr = callPackage ../tools/misc/lighthouse-steamvr { };
 
-  lighttable = callPackage ../applications/editors/lighttable {};
-
   liblinphone = callPackage ../development/libraries/liblinphone { };
 
   links2 = callPackage ../applications/networking/browsers/links2 { };