diff --git a/core/core.iml b/core/core.iml
deleted file mode 100644
index 478e1f80..00000000
--- a/core/core.iml
+++ /dev/null
@@ -1,47 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id=":core" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="calculatorpp" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="android-gradle" name="Android-Gradle">
-      <configuration>
-        <option name="GRADLE_PROJECT_PATH" value=":core" />
-      </configuration>
-    </facet>
-    <facet type="java-gradle" name="Java-Gradle">
-      <configuration>
-        <option name="BUILD_FOLDER_PATH" value="$MODULE_DIR$/build" />
-        <option name="BUILDABLE" value="true" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/build/classes/main" />
-    <output-test url="file://$MODULE_DIR$/build/classes/test" />
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
-      <excludeFolder url="file://$MODULE_DIR$/build" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="common-text-1.0.7" level="project" />
-    <orderEntry type="library" exported="" name="common-listeners-1.0.7" level="project" />
-    <orderEntry type="library" exported="" name="guava-11.0.2" level="project" />
-    <orderEntry type="library" exported="" name="jscl-1.0.11" level="project" />
-    <orderEntry type="library" exported="" name="simple-xml-2.6.1" level="project" />
-    <orderEntry type="library" exported="" name="commons-cli-1.2" level="project" />
-    <orderEntry type="library" exported="" name="common-core-1.0.7" level="project" />
-    <orderEntry type="library" exported="" name="annotations-2.0.1" level="project" />
-    <orderEntry type="library" exported="" name="common-msg-1.0.5" level="project" />
-    <orderEntry type="library" exported="" name="stax-1.2.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="junit-4.11" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="opencsv-2.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="mockito-core-1.9.0" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="hamcrest-core-1.3" level="project" />
-    <orderEntry type="library" exported="" scope="TEST" name="objenesis-1.0" level="project" />
-    <orderEntry type="library" exported="" name="core.core" level="project" />
-  </component>
-</module>
\ No newline at end of file