diff --git a/.idea/ant.xml b/.idea/ant.xml
deleted file mode 100644
index 947266eebf9..00000000000
--- a/.idea/ant.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="AntConfiguration">
-    <buildFile url="file://$PROJECT_DIR$/libraries/build-docs.xml">
-      <maximumHeapSize value="1024" />
-    </buildFile>
-  </component>
-</project>
\ No newline at end of file
diff --git a/libraries/build-docs.xml b/libraries/build-docs.xml
deleted file mode 100644
index eaa8d26381b..00000000000
--- a/libraries/build-docs.xml
+++ /dev/null
@@ -1,112 +0,0 @@
-<project name="Kotlin standard library" default="document">
-    <!-- Generates the standard library documentation using Dokka. -->
-    <property name="github.revision" value="master"/>
-    <property name="dokka.path" value="../dependencies/dokka" />
-    <property name="docs.output" value="${basedir}/doc" />
-    <property name="dokka.format" value="kotlin-website-html"/>
-
-    <typedef resource="dokka-antlib.xml">
-        <classpath>
-            <fileset dir="${dokka.path}/lib" erroronmissingdir="false">
-                <include name="*.jar"/>
-            </fileset>
-
-            <!-- used for running locally -->
-            <fileset dir="${dokka.path}/runners/fatjar/build/libs/" erroronmissingdir="false">
-                <include name="dokka-fatjar*.jar"/>
-            </fileset>
-        </classpath>
-    </typedef>
-
-    <target name="clean">
-        <delete dir="${docs.output}"/>
-        <mkdir dir="${docs.output}"/>
-    </target>
-
-    <target name="dist-stdlib">
-        <java classname="org.gradle.wrapper.GradleWrapperMain"
-              fork="true"
-              dir="${basedir}/.."
-              failonerror="true"
-              timeout="4000000"
-              taskname="gradle">
-            <classpath>
-                <pathelement location="${basedir}/../gradle/wrapper/gradle-wrapper.jar"/>
-            </classpath>
-            <arg line="--no-daemon"/>
-            <arg line=":kotlin-stdlib:dist"/>
-        </java>
-    </target>
-
-    <path id="stdlib.compile.classpath">
-        <fileset dir="${basedir}/../dist/kotlinc/lib/" includes="kotlin-stdlib.jar"/>
-    </path>
-    <path id="kotlin-test.compile.classpath">
-        <fileset dir="${basedir}/../dist/kotlinc/lib/" includes="kotlin-stdlib.jar"/>
-        <pathelement location="${basedir}/lib/junit-4.11.jar"/>
-    </path>
-    <target name="document" depends="clean,dist-stdlib">
-        <dokka samples="stdlib/samples/test" outputDir="${docs.output}/jre8" moduleName="kotlin-stdlib" skipDeprecated="false" outputFormat="${dokka.format}" jdkversion="8" impliedplatforms="JVM,JS"
-               include="stdlib/src/Module.md" noStdlibLink="true" classpathref="stdlib.compile.classpath" languageVersion="1.2">
-
-            <sourceRoot path="stdlib/jvm/src" platforms="JVM"/>
-            <!--<sourceRoot path="stdlib/common/src" />-->
-            <!--<sourceRoot path="stdlib/common/src/generated" platforms="Common"/>-->
-            <!--<sourceRoot path="stdlib/common/build/common-sources" />-->
-            <sourceRoot path="stdlib/jdk7/src" platforms="JVM,JRE7"/>
-            <sourceRoot path="stdlib/jdk8/src" platforms="JVM,JRE8"/>
-            <sourceRoot path="../core/builtins/native" platforms="JVM"/>
-            <sourceRoot path="../core/builtins/src" platforms="JVM"/>
-            <sourceRoot path="../core/reflection.jvm/src" platforms="JVM"/>
-            <sourceRoot path="stdlib/jvm/runtime/kotlin/jvm/annotations" platforms="JVM"/>
-            <sourceRoot path="stdlib/jvm/runtime/kotlin/jvm/JvmClassMapping.kt" platforms="JVM"/>
-            <sourceRoot path="stdlib/jvm/runtime/kotlin/jvm/PurelyImplements.kt" platforms="JVM"/>
-            <sourceRoot path="stdlib/jvm/runtime/kotlin/TypeAliases.kt" platforms="JVM"/>
-            <sourceRoot path="stdlib/jvm/runtime/kotlin/text/TypeAliases.kt" platforms="JVM"/>
-
-
-            <sourceRoot path="../core/builtins/native" platforms="JS"/>
-            <sourceRoot path="../core/builtins/src" platforms="JS"/>
-
-            <sourceRoot path="stdlib/js/src" platforms="JS"/>
-
-            <sourceRoot path="../core/builtins/native" />
-            <sourceRoot path="../core/builtins/src" />
-            <sourceRoot path="stdlib/common/src" />
-            <sourceRoot path="stdlib/src" />
-
-            <sourcelink path=".." url="https://github.com/JetBrains/kotlin/blob/${github.revision}" linesuffix="#L"/>
-
-            <!-- TODO Docs? -->
-            <packageOptions prefix="org.w3c" reportUndocumented="false"/>
-            <packageOptions prefix="org.khronos" reportUndocumented="false"/>
-            <packageOptions prefix="jquery" suppress="true"/>
-            <packageOptions prefix="kotlin.reflect.jvm.internal" suppress="true"/>
-        </dokka>
-        <makeurl file="${docs.output}/jre8/kotlin-stdlib/package-list" property="stdlib.package.list"/>
-        <dokka outputDir="${docs.output}/jre8" moduleName="kotlin-test" skipDeprecated="false" outputFormat="${dokka.format}" jdkversion="8" impliedplatforms="JVM,JS"
-               include="kotlin.test/Module.md" noStdlibLink="true" classpathref="kotlin-test.compile.classpath" languageVersion="1.2">
-
-            <sourceRoot path="kotlin.test/common/src/main/kotlin" platforms="JVM,JS"/>
-            <sourceRoot path="kotlin.test/jvm/src/main/kotlin" platforms="JVM"/>
-            <sourceRoot path="kotlin.test/junit/src/main/kotlin" platforms="JVM"/>
-            <sourceRoot path="kotlin.test/testng/src/main/kotlin" platforms="JVM"/>
-            <sourceRoot path="kotlin.test/js/src/main/kotlin" platforms="JS"/>
-
-            <sourcelink path=".." url="https://github.com/JetBrains/kotlin/blob/${github.revision}" linesuffix="#L"/>
-            <ExternalDocumentationLink url="https://kotlinlang.org/api/latest/jvm/stdlib/" packageListUrl="${stdlib.package.list}" />
-            <ExternalDocumentationLink url="https://junit.org/junit4/javadoc/latest/" />
-            <packageoptions prefix="org.junit" skipdeprecated="true"/>
-        </dokka>
-    </target>
-
-    <target name="write-build-number">
-        <echo file="${docs.output}/jre8/kotlin-stdlib/buildNumber.txt">${build.number}</echo>
-        <echo file="${docs.output}/jre8/kotlin-test/buildNumber.txt">${build.number}</echo>
-    </target>
-
-    <target name="zip" depends="document,write-build-number">
-        <zip destfile="target/stdlib-docs.zip" basedir="${docs.output}/jre8/kotlin-stdlib"/>
-        <zip destfile="target/kotlin-test-docs.zip" basedir="${docs.output}/jre8/kotlin-test"/>
-    </target>
-</project>
diff --git a/libraries/lib/junit-4.11.jar b/libraries/lib/junit-4.11.jar
deleted file mode 100644
index aaf74448492..00000000000
Binary files a/libraries/lib/junit-4.11.jar and /dev/null differ