RFR: JDK-8223586: remove jpackage dead code and other cleanup

[Alexey Semenyuk]

Looks good.

- Alexey

On 6/5/2019 8:14 PM, Andy Herrick wrote:
> Please review the jpackage fix for bug [1] at [2].
>
> This is a fix for the JDK-8200758-branch branch of the open sandbox 
> repository (jpackage).
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8223586
> [2] http://cr.openjdk.java.net/~herrick/8223586/
>
> /Andy
>