oops unnecessary import

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@513903 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Truncate.java

@@ -25,7 +25,6 @@ import java.util.Iterator;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.Task;
-import org.apache.tools.ant.types.EnumeratedAttribute;
 import org.apache.tools.ant.types.Path;
 import org.apache.tools.ant.types.ResourceCollection;
 import org.apache.tools.ant.types.resources.FileResource;