RFR JDK-8194084: Obsolete FastTLABRefill and remove the related code

[Aleksey Shipilev]

On 02/16/2018 06:06 PM, JC Beyler wrote:
> I updated the webrev to:
> http://cr.openjdk.java.net/~jcbeyler/8194084/webrev.01/
> 
> - arm: missing a looks good and test
> - x86: missing a looks good and test :)

Well, current jdk/hs builds do not look very good ;)
  https://bugs.openjdk.java.net/browse/JDK-8198341

JC, can you eyeball the patch for these kinds of failures on other platforms and follow up?

Thanks,
-Aleksey