Remove script collected debug event.

src/d8.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 "use strict";
 
 String.prototype.startsWith = function (str) {
   if (str.length > this.length) {
     return false;
   }
@@ skipping 190 matching lines @@
         var source = body.script.source;
         if (!(source[source.length - 1] == '\n')) {
           result += source;
         } else {
           result += source.substring(0, source.length - 1);
         }
       }
       details.text = result;
       break;
 
-    case 'scriptCollected':
-      details.text = result;
-      break;
-
     default:
       details.text = 'Unknown debug event ' + response.event();
   }
 
   return details;
 }
 
 
 function SourceInfo(body) {
   var result = '';
@@ skipping 1788 matching lines @@
         if ("set" in desc) {
           var setter = desc.set.toString();
           props.push("set " + name + setter.slice(setter.indexOf('(')));
         }
       }
       return "{" + props.join(", ") + "}";
     default:
       return "[crazy non-standard shit]";
   }
 }