remove extraneous dependency

pom.xml

@@ -195,7 +195,6 @@
             <configuration>
               <testPlanLibraries>
                 <artifact>com.symas:ldap-load-gen:${project.version}</artifact>
-                <artifact>org.apache.commons:commons-pool2:${commons-pool2.version}</artifact>
               </testPlanLibraries>
               <suppressJMeterOutput>false</suppressJMeterOutput>
               <testFilesIncluded>