DB-2444: hide do not track UI

Author: tsl143

mozilla-release/browser/components/preferences/in-content/privacy.inc.xhtml

@@ -695,6 +695,7 @@
 </groupbox>
 
 <!-- Tracking -->
+#if 0
 <groupbox id="trackingGroup" data-category="panePrivacy" hidden="true">
   <label><html:h2 data-l10n-id="tracking-header-donottrack"/></label>
     <hbox align="center">
@@ -709,6 +710,7 @@
               href="https://www.mozilla.org/dnt"/>
     </hbox>
 </groupbox>
+#endif
 
 <hbox id="permissionsCategory"
       class="subcategory"