RFR(s): 8044768: Backout fix for JDK-8040807

[Per Liden]

Hi,

Requesting reviews on this anti-delta to backout the fix for 
JDK-8040807. It turns out that there are still issues here, which for 
some reason didn't show up in the testing I did :(

Bug: https://bugs.openjdk.java.net/browse/JDK-8044768
Webrev: http://cr.openjdk.java.net/~pliden/8044768/webrev.0/

Original bug: https://bugs.openjdk.java.net/browse/JDK-8040807
Original webrev: http://cr.openjdk.java.net/~pliden/8040807/webrev.1/
Original review: 
http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2014-May/010102.html

Thanks!
/Per