diff --git a/dev-java/netty-transport/files/netty-transport-4.0.21-build.xml b/dev-java/netty-transport/files/netty-transport-4.0.21-build.xml
deleted file mode 100644
index 4f033f48124a6..0000000000000
--- a/dev-java/netty-transport/files/netty-transport-4.0.21-build.xml
+++ /dev/null
@@ -1,229 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<!-- ====================================================================== -->
-<!-- Ant build file (http://ant.apache.org/) for Ant 1.6.2 or above.        -->
-<!-- ====================================================================== -->
-
-<!-- ====================================================================== -->
-<!-- ===================== - DO NOT EDIT THIS FILE! - ===================== -->
-<!-- ====================================================================== -->
-<!--                                                                        -->
-<!-- Any modifications will be overwritten.                                 -->
-<!--                                                                        -->
-<!-- Generated by Maven Ant Plugin on 5/15/14 7:12 PM                       -->
-<!-- See: http://maven.apache.org/plugins/maven-ant-plugin/                 -->
-<!--                                                                        -->
-<!-- ====================================================================== -->
-
-<project name="netty-transport-from-maven" default="package" basedir=".">
-
-  <!-- ====================================================================== -->
-  <!-- Build environment properties                                           -->
-  <!-- ====================================================================== -->
-
-  <property file="${user.home}/.m2/maven.properties"/>
-  <property file="maven-build.properties"/>
-
-  <property name="maven.build.finalName" value="netty-transport-4.0.21.Final"/>
-  <property name="maven.build.dir" value="target"/>
-  <property name="maven.build.outputDir" value="${maven.build.dir}/classes"/>
-  <property name="maven.build.srcDir.0" value="src/main/java"/>
-  <property name="maven.build.resourceDir.0" value="src/main/resources"/>
-  <property name="maven.build.testOutputDir" value="${maven.build.dir}/test-classes"/>
-  <property name="maven.build.testDir.0" value="src/test/java"/>
-  <property name="maven.build.testResourceDir.0" value="src/test/resources"/>
-  <property name="maven.test.reports" value="${maven.build.dir}/test-reports"/>
-  <property name="maven.reporting.outputDirectory" value="${maven.build.dir}/site"/>
-
-  <property name="maven.repo.local" value="${user.home}/.m2/repository"/>
-  <property name="maven.settings.offline" value="false"/>
-  <property name="maven.settings.interactiveMode" value="true"/>
-
-  <!-- ====================================================================== -->
-  <!-- Defining classpaths                                                    -->
-  <!-- ====================================================================== -->
-
-  <path id="build.classpath">
-  </path>
-  <path id="build.test.classpath">
-  </path>
-
-  <!-- ====================================================================== -->
-  <!-- Cleaning up target                                                     -->
-  <!-- ====================================================================== -->
-
-  <target name="clean" description="Clean the output directory">
-    <delete dir="${maven.build.dir}"/>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- Compilation target                                                     -->
-  <!-- ====================================================================== -->
-
-  <target name="compile" description="Compile the code">
-    <mkdir dir="${maven.build.outputDir}"/>
-    <javac destdir="${maven.build.outputDir}" 
-           nowarn="true" 
-           debug="true" 
-           optimize="true" 
-           deprecation="true" 
-           target="1.6" 
-           verbose="false" 
-           fork="true" 
-           memoryInitialSize="1024m"
-           source="1.6">
-      <src>
-        <pathelement location="${maven.build.srcDir.0}"/>
-      </src>
-      <classpath refid="build.classpath"/>
-    </javac>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- Test-compilation target                                                -->
-  <!-- ====================================================================== -->
-
-  <target name="compile-tests" 
-          depends="compile" 
-          description="Compile the test code" 
-          unless="maven.test.skip">
-    <mkdir dir="${maven.build.testOutputDir}"/>
-    <javac destdir="${maven.build.testOutputDir}" 
-           nowarn="true" 
-           debug="true" 
-           optimize="true" 
-           deprecation="true" 
-           target="1.6" 
-           verbose="false" 
-           fork="true" 
-           memoryInitialSize="1024m"
-           source="1.6">
-      <src>
-        <pathelement location="${maven.build.testDir.0}"/>
-      </src>
-      <classpath>
-        <path refid="build.test.classpath"/>
-        <pathelement location="${maven.build.outputDir}"/>
-      </classpath>
-    </javac>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- Run all tests                                                          -->
-  <!-- ====================================================================== -->
-
-  <target name="test" 
-          depends="compile-tests, junit-missing" 
-          unless="junit.skipped" 
-          description="Run the test cases">
-    <mkdir dir="${maven.test.reports}"/>
-    <junit printSummary="yes" haltonerror="true" haltonfailure="true" fork="true" dir=".">
-      <sysproperty key="basedir" value="."/>
-      <formatter type="xml"/>
-      <formatter type="plain" usefile="false"/>
-      <classpath>
-        <path refid="build.test.classpath"/>
-        <pathelement location="${maven.build.outputDir}"/>
-        <pathelement location="${maven.build.testOutputDir}"/>
-      </classpath>
-      <batchtest todir="${maven.test.reports}" unless="test">
-        <fileset dir="${maven.build.testDir.0}">
-          <include name="**/*Test*.java"/>
-          <include name="**/*Benchmark*.java"/>
-          <exclude name="**/Abstract*"/>
-          <exclude name="**/TestUtil*"/>
-        </fileset>
-      </batchtest>
-      <batchtest todir="${maven.test.reports}" if="test">
-        <fileset dir="${maven.build.testDir.0}">
-          <include name="**/${test}.java"/>
-          <exclude name="**/Abstract*"/>
-          <exclude name="**/TestUtil*"/>
-        </fileset>
-      </batchtest>
-    </junit>
-  </target>
-
-  <target name="test-junit-present">
-    <available classname="junit.framework.Test" property="junit.present"/>
-  </target>
-
-  <target name="test-junit-status" 
-          depends="test-junit-present">
-    <condition property="junit.missing">
-      <and>
-        <isfalse value="${junit.present}"/>
-        <isfalse value="${maven.test.skip}"/>
-      </and>
-    </condition>
-    <condition property="junit.skipped">
-      <or>
-        <isfalse value="${junit.present}"/>
-        <istrue value="${maven.test.skip}"/>
-      </or>
-    </condition>
-  </target>
-
-  <target name="junit-missing" 
-          depends="test-junit-status" 
-          if="junit.missing">
-    <echo>=================================== WARNING ===================================</echo>
-    <echo> JUnit is not present in your $ANT_HOME/lib directory. Tests not executed.</echo>
-    <echo>===============================================================================</echo>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- Javadoc target                                                         -->
-  <!-- ====================================================================== -->
-
-  <target name="javadoc" description="Generates the Javadoc of the application">
-    <javadoc sourcepath="${maven.build.srcDir.0}" 
-             packagenames="*" 
-             destdir="${maven.reporting.outputDirectory}/apidocs" 
-             access="protected" 
-             old="false" 
-             verbose="false" 
-             version="false" 
-             use="true" 
-             author="false" 
-             splitindex="false" 
-             nodeprecated="false" 
-             nodeprecatedlist="false" 
-             notree="false" 
-             noindex="false" 
-             nohelp="false" 
-             nonavbar="false" 
-             serialwarn="false" 
-             charset="ISO-8859-1" 
-             linksource="false" 
-             breakiterator="true"/>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- Package target                                                         -->
-  <!-- ====================================================================== -->
-
-  <target name="package" depends="compile,test" description="Package the application">
-    <jar jarfile="${maven.build.dir}/${maven.build.finalName}.jar" 
-         compress="true" 
-         index="false" 
-         basedir="${maven.build.outputDir}" 
-         excludes="**/package.html"/>
-  </target>
-
-  <!-- ====================================================================== -->
-  <!-- A dummy target for the package named after the type it creates         -->
-  <!-- ====================================================================== -->
-
-  <target name="jar" depends="package" description="Builds the jar for the application"/>
-
-  <!-- ====================================================================== -->
-  <!-- Download dependencies target                                           -->
-  <!-- ====================================================================== -->
-
-  <target name="test-offline">
-    <condition property="maven.mode.offline">
-      <equals arg1="${maven.settings.offline}" arg2="true"/>
-    </condition>
-  </target>
-</project>