Fix some warnings in Eclipse

java/org/chromium/distiller/SchemaOrgParser.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.distiller;
 
 import org.chromium.distiller.proto.DomDistillerProtos.TimingInfo;
 
 import com.google.gwt.dom.client.Element;
-import com.google.gwt.dom.client.Node;
 import com.google.gwt.dom.client.NodeList;
 
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
 /**
  * This class recognizes and parses schema.org markup tags, and returns the properties that matter
  * to distilled content.
@@ skipping 470 matching lines @@
         return author;
     }
 
     private static String concat(String first, String second) {
         String concat = first;
         if (!concat.isEmpty() && !second.isEmpty()) concat += " ";
         concat += second;
         return concat;
     }
 }