revert util module language level changes

.idea/compiler.xml

@@ -44,7 +44,6 @@
       <module name="remote-servers-agent-rt" target="1.5" />
       <module name="testng_rt" target="1.5" />
       <module name="ui-designer-jps-plugin" target="1.6" />
-      <module name="util" target="1.5" />
       <module name="util-rt" target="1.5" />
     </bytecodeTargetLevel>
   </component>

build/conf/classVersions.txt

@@ -29,7 +29,6 @@
 1.6 =>
 
 1.3 => lib/idea_rt.jar
-1.5 => lib/util.jar
 
 1.7 => lib/fxHelpBrowser.jar
 1.7 => lib/optimizedFileManager.jar

platform/util/util.iml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module relativePaths="true" type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />