Revert of MD Settings: make custom UIs look "actionable"

chrome/browser/resources/settings/on_startup_page/startup_urls_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="/settings_shared_css.html">
 <link rel="import" href="/on_startup_page/startup_url_dialog.html">
 <link rel="import" href="/on_startup_page/startup_url_entry.html">
 <link rel="import" href="/on_startup_page/startup_urls_page_browser_proxy.html">
 
 <dom-module id="settings-startup-urls-page">
   <template>
     <style include="settings-shared">
       paper-radio-button {
         display: block;
       }
-
-      .list-button {
-        @apply(--settings-actionable);
-      }
     </style>
     <div class="list-frame vertical-list">
       <template is="dom-repeat" items="[[startupPages_]]">
         <settings-startup-url-entry model="[[item]]">
         </settings-startup-url-entry>
       </template>
       <div class="list-item list-button" id="addPage" on-tap="onAddPageTap_">
         $i18n{onStartupAddNewPage}
       </div>
       <div class="list-item list-button" id="useCurrentPages"
           on-tap="onUseCurrentPagesTap_">$i18n{onStartupUseCurrent}</div>
     </div>
     <template is="dom-if" if="[[showStartupUrlDialog_]]" restamp>
       <settings-startup-url-dialog model="[[startupUrlDialogModel_]]">
       </settings-startup-url-dialog>
     </template>
   </template>
   <script src="startup_urls_page.js"></script>
 </dom-module>