Simplify the thunk targets since we don't support apps as components

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.
 
 import("//mojo/public/mojo_application.gni")
 
 mojo_native_application("clipboard") {
   sources = [
     "clipboard_standalone_impl.cc",
     "clipboard_standalone_impl.h",
     "main.cc",
   ]
 
   deps = [
     "//base",
     "//mojo/application",
     "//mojo/common",
     "//mojo/environment:chromium",
-    "//mojo/public/c/system:for_shared_library",
     "//mojo/public/cpp/bindings",
     "//mojo/services/public/interfaces/clipboard",
     "//ui/base",
   ]
 }
 
 test("clipboard_unittests") {
   sources = [
     "clipboard_standalone_unittest.cc",
   ]
 
   deps = [
     "//base",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
     "//mojo/application",
     "//mojo/application_manager",
     "//mojo/common",
     "//mojo/edk/system",
     "//mojo/environment:chromium",
     "//mojo/services/public/interfaces/clipboard:clipboard",
     "//mojo/shell:test_support",
     "//testing/gtest",
   ]
 }