Revert 151420 - Add documentation for filtered events.

chrome/common/extensions/docs/template/api_template.html

   <link href="../css/ApiRefStyles.css" rel="stylesheet" type="text/css">
   <link href="../css/prettify.css" rel="stylesheet" type="text/css">
   <link href="../css/shared.css" rel="stylesheet" type="text/css">
   <div id="devModeWarning" class="displayModeWarning">
     You are viewing extension docs in chrome via the 'file:' scheme: are you expecting to see local changes when you refresh? You'll need run chrome with --allow-file-access-from-files.
   </div>
   <div id="branchWarning" class="displayModeWarning">
     <span>WARNING: This is the <span id="branchName">BETA</span> documentation.
     It may not work with the stable release of Chrome.</span>
     <select id='branchChooser'>
@@ skipping 507 matching lines @@
                 <div jsdisplay="extraParameters && extraParameters.length > 0">
                   <h4>Extra parameters to addListener</h4>
                   <dl>
                     <div jsselect="extraParameters">
                       <div transclude="valueTemplate">
                       </div>
                     </div>
                   </dl>
                 </div>
 
-                <!-- FILTERS -->
-                <div jsdisplay="filters && filters.length > 0">
-                  <h4>Filters</h4>
-                  <dl>
-                    <div jsselect="filters">
-                      <div transclude="valueTemplate">
-                      </div>
-                    </div>
-                  </dl>
-                </div>
-
                 <!-- LISTENER RETURN VALUE -->
                 <h4 jsdisplay="returns">Listener returns</h4>
                 <dl>
                   <div jsselect="returns">
                     <div transclude="valueTemplate">
                     </div>
                   </div>
                 </dl>
 
               </div> <!-- /description -->
@@ skipping 98 matching lines @@
     _uanchor=1;
     _uff=0;
     urchinTracker();
   }
   catch(e) {/* urchinTracker not available. */}
 </script>
 <!-- end analytics -->
       </div>
     </div> <!-- /gc-footer -->
   </div> <!-- /gc-container -->