Remove duplicate application cpp files in mojo/application.

components/view_manager/public/cpp/tests/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.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 test("mojo_view_manager_lib_unittests") {
   sources = [
     "run_all_unittests.cc",
     "view_manager_test_suite.cc",
     "view_manager_test_suite.h",
     "view_unittest.cc",
   ]
 
   deps = [
     "//base",
     "//base/test:test_support",
 
     # TODO(vtl): These non-public deps are illegal here. This should be
     # converted to an apptest.
-    "//mojo/application",
     "//mojo/application/public/cpp",
     "//mojo/edk/system",
-    "//mojo/environment:chromium",
     "//mojo/public/cpp/system",
     "//mojo/services/geometry/public/cpp",
     "//mojo/services/geometry/public/interfaces",
     "//mojo/services/view_manager/public/cpp",
     "//testing/gtest",
   ]
 
   if (use_x11) {
     deps += [ "//ui/gfx/x" ]
   }
 }