Second round of deprecation removal.

tools/dom/templates/html/impl/impl_Node.darttemplate

 // Copyright (c) 2012, 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 $LIBRARYNAME;
 
 /**
  * Lazy implementation of the child nodes of an element that does not request
  * the actual child nodes of an element until strictly necessary greatly
  * improving performance for the typical cases where it is not required.
@@ skipping 240 matching lines @@
       for (var node in newNodes) {
         this.insertBefore(node, refChild);
       }
     }
   }
 
   /**
    * Print out a String representation of this Node.
    */
   String toString() => nodeValue == null ? super.toString() : nodeValue;
-
-  /**
-   * Use ownerDocument instead.
-   */
-  @deprecated
-  Document get document => ownerDocument;
-
 $!MEMBERS
 }