remove useless code

webmagic-core/src/main/java/us/codecraft/webmagic/pipeline/ResultItemsCollectorPipeline.java

@@ -15,7 +15,7 @@ public class ResultItemsCollectorPipeline implements CollectorPipeline<ResultIte
     private List<ResultItems> collector = new ArrayList<ResultItems>();
 
     @Override
-    public void process(ResultItems resultItems, Task task) {
+    public synchronized void process(ResultItems resultItems, Task task) {
         collector.add(resultItems);
     }
 

webmagic-extension/src/main/java/us/codecraft/webmagic/model/annotation/UrlTemplate.java

-package us.codecraft.webmagic.model.annotation;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.Target;
-
-/**
- * Define the url patterns for class. <br>
- * All urls matching the pattern will be crawled and extracted for new objects. <br>
- *
- * @author code4crafter@gmail.com <br>
- * @since 0.3.3
- */
-@Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
-@Target({ElementType.TYPE})
-public @interface UrlTemplate {
-
-    /**
-     * The url patterns for class.<br>
-     * Use regex expression with some changes: <br>
-     *      "." stand for literal character "." instead of "any character". <br>
-     *      "*" stand for any legal character for url in 0-n length ([^"'#]*) instead of "any length". <br>
-     *
-     * @return the url patterns for class
-     */
-    String value();
-
-    /**
-     * Define the region for url extracting. <br>
-     * Only support XPath.<br>
-     * When sourceRegion is set, the urls will be extracted only from the region instead of entire content. <br>
-     *
-     * @return the region for url extracting
-     */
-    String encoding() default "utf8";
-
-}

webmagic-extension/src/main/java/us/codecraft/webmagic/model/direct/Param.java

-package us.codecraft.webmagic.model.direct;
-
-import java.util.LinkedHashMap;
-
-/**
- * @author code4crafter@gmail.com
- */
-public class Param extends LinkedHashMap<String,Object>{
-
-    @Override
-    public Param put(String key, Object value) {
-        super.put(key, value);
-        return this;
-    }
-}