Remove the "Settings" packaged app

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
   <include src="automatic_settings_reset_banner.html">
 <if expr="chromeos">
   <link rel="import" href="chrome://resources/cr_elements/network/cr_network_icon.html">
   <link rel="import" href="chrome://resources/cr_elements/network/cr_onc_types.html">
   <include src="secondary_user_banner.html">
   <section id="network-section-cros">
@@ skipping 259 matching lines @@
         <label>
           <input pref="profile.add_person_enabled"
                  type="checkbox"
                  metric="Options_AddPersonEnabled">
           <span i18n-content="profileAddPersonEnable"></span>
         </label>
       </div>
 </if>
       <div id="profiles-buttons">
         <button id="profiles-create" i18n-content="profilesCreate"></button>
-<if expr="enable_settings_app">
-        <button id="profiles-app-list-switch"
-            i18n-content="profilesAppListSwitch" hidden>
-        </button>
-</if>
         <button id="profiles-manage" i18n-content="profilesManage" disabled>
         </button>
         <button id="profiles-delete" i18n-content="profilesDelete"></button>
 <if expr="not chromeos">
         <button id="import-data" i18n-content="importData"></button>
 </if>
       </div>
     </div>
     <div id="profiles-supervised-dashboard-tip"
         i18n-values=".innerHTML:profilesSupervisedDashboardTip" hidden>
@@ skipping 830 matching lines @@
       </button>
     </div>
   </section>
   </div>  <!-- advanced-settings-container -->
   </div>  <!-- advanced-settings -->
   <footer id="advanced-settings-footer">
     <a is="action-link" id="advanced-settings-expander"
         i18n-content="showAdvancedSettings"></a>
   </footer>
 </div>