[ObjC ARC] Converts ios/chrome/browser/ui/settings:settings to ARC.

ios/chrome/test/earl_grey/BUILD.gn

 # Copyright 2016 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("//ios/chrome/test/earl_grey/chrome_ios_eg_test.gni")
 
 group("all_tests") {
   testonly = true
   deps = [
     ":ios_chrome_device_check_egtests",
@@ skipping 155 matching lines @@
   deps = [
     "//base",
     "//base/test:test_support",
     "//components/strings",
     "//ios/chrome/app/strings",
     "//ios/chrome/browser/ui",
     "//ios/chrome/browser/ui/collection_view/cells",
     "//ios/chrome/browser/ui/commands:commands",
     "//ios/chrome/browser/ui/omnibox:omnibox_internal",
     "//ios/chrome/browser/ui/settings:settings",
-    "//ios/chrome/browser/ui/settings:settings_arc",
     "//ios/chrome/browser/ui/static_content",
     "//ios/chrome/browser/ui/toolbar",
     "//ios/chrome/browser/ui/tools_menu",
     "//ios/chrome/test/app:test_support",
     "//ios/testing:ios_test_support",
     "//ios/testing/earl_grey:earl_grey_support",
     "//ios/third_party/material_components_ios",
     "//ios/web",
     "//ios/web:earl_grey_test_support",
     "//ios/web:test_support",
@@ skipping 16 matching lines @@
 
 source_set("hooks") {
   testonly = true
   sources = [
     "eg_tests_hook.mm",
   ]
   deps = [
     "//ios/chrome/app:tests_hook",
   ]
 }