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

chrome/browser/resources/settings/site_settings_page/site_settings_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-item/paper-item.html">
 <link rel="import" href="/icons.html">
 <link rel="import" href="/settings_shared_css.html">
 <link rel="import" href="/site_settings/constants.html">
 <link rel="import" href="/site_settings/site_settings_behavior.html">
 <link rel="import" href="/site_settings/site_settings_prefs_browser_proxy.html">
 
 <dom-module id="settings-site-settings-page">
   <template>
     <style include="settings-shared">
-      .settings-box[category] {
-        @apply(--settings-actionable);
-      }
     </style>
     <div class="settings-box first" category$="[[ALL_SITES]]"
         on-tap="onTapCategory">
       <iron-icon icon="settings:list"></iron-icon>
       <div class="middle">$i18n{siteSettingsCategoryAllSites}</div>
     </div>
     <div class="settings-box two-line"
         category$="[[ContentSettingsTypes.COOKIES]]" on-tap="onTapCategory">
       <iron-icon icon="[[computeIconForContentCategory(
           ContentSettingsTypes.COOKIES)]]"></iron-icon>
@@ skipping 119 matching lines @@
           ContentSettingsTypes.UNSANDBOXED_PLUGINS)]]" item-icon=""></iron-icon>
       <div class="middle">
         [[computeTitleForContentCategory(
             ContentSettingsTypes.UNSANDBOXED_PLUGINS)]]
         <div id="unsandboxedPlugins" class="secondary"></div>
       </div>
     </div>
   </template>
   <script src="site_settings_page.js"></script>
 </dom-module>