diff --git a/antlr4.iml b/antlr4.iml
deleted file mode 100644
index d5c074327..000000000
--- a/antlr4.iml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
-
diff --git a/runtime/Java/runtime.iml b/runtime/Java/runtime.iml
deleted file mode 100644
index aeecfd3b3..000000000
--- a/runtime/Java/runtime.iml
+++ /dev/null
@@ -1,29 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$/../../gen4">
-      <sourceFolder url="file://$MODULE_DIR$/../../gen4" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-    </content>
-    <orderEntry type="jdk" jdkName="1.7" jdkType="JavaSDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="module-library">
-      <library>
-        <CLASSES>
-          <root url="jar://$MODULE_DIR$/lib/org.abego.treelayout.core.jar!/" />
-        </CLASSES>
-        <JAVADOC />
-        <SOURCES />
-      </library>
-    </orderEntry>
-    <orderEntry type="library" name="junit-4.11" level="application" />
-    <orderEntry type="library" name="hamcrest-core-1.3" level="application" />
-  </component>
-  <component name="PluginUploader.PluginUploadConfigurable">
-    <option name="ARCHIVE_PATH" />
-    <option name="PLUGIN_ID" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/tool/tool.iml b/tool/tool.iml
deleted file mode 100644
index 16da39d3b..000000000
--- a/tool/tool.iml
+++ /dev/null
@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="Python" name="Python">
-      <configuration sdkName="" />
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$/../../antlr4-csharp/tool/resources">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-csharp/tool/resources" type="java-resource" />
-    </content>
-    <content url="file://$MODULE_DIR$/../../antlr4-csharp/tool/src">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-csharp/tool/src" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$/../../antlr4-csharp/tool/test">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-csharp/tool/test" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$/../../antlr4-javascript">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/src" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test" isTestSource="false" />
-      <excludeFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test/org/antlr/v4/test/rt" />
-      <excludeFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test/org/antlr/v4/test/runtime/javascript/chrome" />
-      <excludeFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test/org/antlr/v4/test/runtime/javascript/explorer" />
-      <excludeFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test/org/antlr/v4/test/runtime/javascript/firefox" />
-      <excludeFolder url="file://$MODULE_DIR$/../../antlr4-javascript/tool/test/org/antlr/v4/test/runtime/javascript/safari" />
-    </content>
-    <content url="file://$MODULE_DIR$/../../antlr4-python2">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-python2/tool/test" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-python2/tool/src" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$/../../antlr4-python3">
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-python3/tool/test" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/../../antlr4-python3/tool/src" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$/../gen3">
-      <sourceFolder url="file://$MODULE_DIR$/../gen3" isTestSource="false" />
-    </content>
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/playground" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/resources" type="java-resource" />
-    </content>
-    <orderEntry type="jdk" jdkName="1.7" jdkType="JavaSDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="module" module-name="runtime" />
-    <orderEntry type="library" scope="TEST" name="ST-4.0.8" level="application" />
-    <orderEntry type="library" name="antlr-3.5.2-complete-no-st3" level="application" />
-    <orderEntry type="library" name="junit-4.11" level="application" />
-    <orderEntry type="library" name="hamcrest-core-1.3" level="application" />
-    <orderEntry type="library" name="maven-3.2.5" level="application" />
-    <orderEntry type="library" name="maven-plugin-annotations-3.4" level="application" />
-    <orderEntry type="library" name="plexus-compiler-api-1.5.3" level="application" />
-    <orderEntry type="library" name="plexus-build-api-0.0.7" level="application" />
-  </component>
-  <component name="PluginUploader.PluginUploadConfigurable">
-    <option name="ARCHIVE_PATH" />
-    <option name="PLUGIN_ID" />
-  </component>
-</module>
\ No newline at end of file