javaunohelper: remove unused import

Change-Id: Ibee790a50e35219a8427b7037331943b778292a2
Reviewed-on: https://gerrit.libreoffice.org/11997Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

javaunohelper/com/sun/star/lib/uno/helper/InterfaceContainer.java

@@ -17,10 +17,11 @@
  */
 
 package com.sun.star.lib.uno.helper;
+
 import java.util.Iterator;
 import java.util.ListIterator;
-import java.util.NoSuchElementException;
 import java.util.Collection;
+
 import com.sun.star.lang.EventObject;
 import com.sun.star.lang.XEventListener;
 import com.sun.star.uno.UnoRuntime;