[9-jake] Review request: 8151320: Remove unnecessary addReads from JavaFX

[Kevin Rushforth]

Please review the following:

https://bugs.openjdk.java.net/browse/JDK-8151320
http://cr.openjdk.java.net/~kcr/8151320/webrev.00/

Now that addReads are no longer necessary in cases where we use core 
reflection [1] we will eliminate these unneeded calls in the FX jake repo.

-- Kevin

[1] 
http://mail.openjdk.java.net/pipermail/jpms-spec-experts/2016-March/000231.html