Revert "Move mojo edk into mojo/edk"

mojo/services/clipboard/BUILD.gn

 # 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.
 
 # GYP version: mojo/mojo_services.gypi:mojo_clipboard
 component("clipboard") {
   deps = [
     "//base",
     "//mojo/application",
     "//mojo/common",
@@ skipping 13 matching lines @@
 
 # GYP version: mojo/mojo_services.gypi:mojo_clipboard_unittests
 test("mojo_clipboard_unittests") {
   deps = [
     "//base",
     "//base/test:test_support",
     "//mojo/application",
     "//mojo/application_manager",
     "//mojo/common",
     "//mojo/common/test:run_all_unittests",
-    "//mojo/edk/system",
     "//mojo/environment:chromium",
     "//mojo/services/public/interfaces/clipboard:clipboard",
     "//mojo/shell:test_support",
+    "//mojo/system",
     "//testing/gtest",
   ]
 
   sources = [
     "clipboard_standalone_unittest.cc",
   ]
 }