RFR 8202974: Backout JDK-8202683

[Aleksey Shipilev]

Hi,

As we can see, recent fix to jvm.cfg configuration was messed up. Erik is trying to fix that with
JDK-8202920 (thanks!). Meanwhile, it seems prudent to backout the offending change. Backout applies
cleanly.

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8202974

Fix:
  http://cr.openjdk.java.net/~shade/8202974/webrev.01/

Testing: x86_64 build, hg diff with previous Copy-java.base.gmk

Thanks,
-Aleksey