Remove nixui to fix travis failures

pkgs/tools/package-management/nixui/default.nix

@@ -1,57 +0,0 @@
-{ stdenv, pkgs, fetchgit, nix, node_webkit, config, makeDesktopItem, writeScript
-, profilePaths ? (config.nixui.profilePaths or ["/nix/var/nix/profiles"])
-, dataDir ? (config.nixui.dataDir or "/tmp")
-, configurations ? (config.nixui.configurations or ["/etc/nixos/configuration.nix"])
-, NIX_PATH ? (config.nixui.NIX_PATH or "/nix/var/nix/profiles/per-user/root/channels/nixos:nixpkgs=/etc/nixos/nixpkgs:nixos-config=/etc/nixos/configuration.nix") }:
-let
-  version = "0.1.0";
-  src = fetchgit {
-    url = "git://github.com/matejc/nixui.git";
-    rev = "refs/tags/${version}";
-    sha256 = "198inv8ih751fc1l4dvjp9p6k4kfacikab61v6f604d45psnk6qf";
-  };
-  # FIXME this should not import from the derivation
-  # default.nix and and its dependencies should be in the nixpkgs tree
-  nixui = (import "${src}/default.nix" { nixui = src; inherit pkgs; }).build;
-  script = writeScript "nixui" ''
-    #! ${stdenv.shell}
-    export PATH="${nix}/bin:\$PATH"
-    export NIXUI_CONFIG="${config}"
-    ${node_webkit}/bin/nw ${nixui}/lib/node_modules/nixui/
-  '';
-  config = builtins.toFile "config.json" ''
-  {
-      "profilePaths": ${builtins.toJSON profilePaths},
-      "dataDir": "${dataDir}",
-      "configurations": ${builtins.toJSON configurations},
-      "NIX_PATH": "${NIX_PATH}"
-  }
-  '';
-  desktop = makeDesktopItem {
-    name = "nixui";
-    exec = script;
-    icon = "${nixui}/lib/node_modules/nixui/img/128.png";
-    desktopName = "NixUI";
-    genericName = "NixUI";
-  };
-in
-stdenv.mkDerivation rec {
-  name = "nixui-${version}";
-  inherit version src;
-  installPhase = ''
-    mkdir -p $out/bin
-    ln -s ${script} $out/bin/nixui
-
-    mkdir -p $out/share/applications
-    ln -s ${desktop}/share/applications/* $out/share/applications/
-  '';
-  meta = {
-    # We don't want derivation building during evaluation
-    broken = true;
-    description = "NodeWebkit user interface for Nix";
-    homepage = https://github.com/matejc/nixui;
-    license = stdenv.lib.licenses.bsd2;
-    maintainers = [ stdenv.lib.maintainers.matejc ];
-    platforms = stdenv.lib.platforms.unix;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -12893,8 +12893,6 @@ let
 
   nixopsUnstable = callPackage ../tools/package-management/nixops/unstable.nix { };
 
-  nixui = callPackage ../tools/package-management/nixui { node_webkit = node_webkit_0_11; };
-
   nix-prefetch-scripts = callPackage ../tools/package-management/nix-prefetch-scripts { };
 
   nix-repl = callPackage ../tools/package-management/nix-repl { };