hg: jdk9/sandbox: 8170884: Clean up post-jlink file copying to the images

[chris.hegarty at oracle.com]

Changeset: 8e58cdbcc371
Author:    ihse
Date:      2017-03-09 09:12 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/8e58cdbcc371

8170884: Clean up post-jlink file copying to the images
Reviewed-by: erikj

! make/Images.gmk