Remove fallback attempt to set outerHtml when removing corrupt nodes, it won't work anyway

tools/dom/src/Validators.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.dom.html;
 
 
 /**
  * Interface used to validate that only accepted elements and attributes are
  * allowed while parsing HTML strings into DOM nodes.
@@ skipping 149 matching lines @@
   }
 
   /// Aggressively try to remove node.
   void _removeNode(Node node, Node parent) {
     // If we have the parent, it's presumably already passed more sanitization or
     // is the fragment, so ask it to remove the child. And if that fails try to
     // set the outer html.
     if (parent == null) {
       node.remove();
     } else {
-      try {
-        parent._removeChild(node);
-      } catch (e) {
-        node.outerHtml = '';
-      }
+      parent._removeChild(node);
     }
   }
   
   void sanitizeNode(Node node, Node parent) {
     switch (node.nodeType) {
       case Node.ELEMENT_NODE:
         Element element = node;
         if (element._hasCorruptedAttributes) {
           window.console.warn('Removing element due to corrupted attributes on <${element}>');
           _removeNode(node, parent);
@@ skipping 38 matching lines @@
       case Node.COMMENT_NODE:
       case Node.DOCUMENT_FRAGMENT_NODE:
       case Node.TEXT_NODE:
       case Node.CDATA_SECTION_NODE:
         break;
       default:
         _removeNode(node, parent);
     }
   }
 }