Rationalize Dart mojo and sky package structure

sky/sdk/packages/sky/bin/init.dart

Index: sky/sdk/packages/sky/bin/init.dart
diff --git a/sky/sdk/packages/sky/bin/init.dart b/sky/sdk/packages/sky/bin/init.dart
deleted file mode 100644
index 7616fec98d38a896d631d8225d1cbf3504992e97..0000000000000000000000000000000000000000
--- a/sky/sdk/packages/sky/bin/init.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/*
-* This script should be invoked via 'pub run' after 'pub get':
-* $ pub run sky:init
-* NOTE: The 'dart' executable must be on your $PATH for this script to work.
-*/
-
-import 'dart:io';
-
-main(List<String> arguments) {
-  ProcessResult result = Process.runSync('dart', ['-p', 'packages', 'packages/mojom/generate.dart']);
-  stdout.write(result.stdout);
-  stderr.write(result.stderr);
-}