Move //mojo/{public, edk} underneath //third_party

mojo/public/tools/BUILD.gn

Index: mojo/public/tools/BUILD.gn
diff --git a/mojo/public/tools/BUILD.gn b/mojo/public/tools/BUILD.gn
deleted file mode 100644
index 12cca6df2e1e26cd123eb6ac3e985f76ce79c4e7..0000000000000000000000000000000000000000
--- a/mojo/public/tools/BUILD.gn
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2014 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.
-
-import("../mojo.gni")
-
-if (use_prebuilt_mojo_shell) {
-  copy("copy_mojo_shell") {
-    filename = "mojo_shell"
-    if (is_win) {
-      filename += ".exe"
-    }
-    sources = [
-      "prebuilt/$filename",
-    ]
-    outputs = [
-      "$root_out_dir/$filename",
-    ]
-  }
-}