8189918: Remove Trailing whitespace from file while syncing 8u into 8u162-b03

Reviewed-by: robm

test/java/awt/Focus/RollbackFocusFromAnotherWindowTest/RollbackFocusFromAnotherWindowTest.java

@@ -111,4 +111,4 @@ public class RollbackFocusFromAnotherWindowTest extends JFrame implements KeyLis
     }
 
 
-} 
\ No newline at end of file
+}