remove not use jar

pom.xml

@@ -122,12 +122,6 @@
                 <version>1.2.1</version>
             </dependency>
 
-            <dependency>
-                <groupId>commons-httpclient</groupId>
-                <artifactId>commons-httpclient</artifactId>
-                <version>3.1</version>
-            </dependency>
-
             <dependency>
                 <groupId>commons-io</groupId>
                 <artifactId>commons-io</artifactId>