Removed useless import.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269944 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/Cab.java

@@ -70,9 +70,8 @@ import java.io.PrintWriter;
 import java.io.FileOutputStream;
 import java.io.OutputStream;
 import java.util.Enumeration;
-
 import java.util.Vector;
-import java.text.DecimalFormat;
+
 
 /**
  * Create a CAB archive.