RFR(S) 8200746: Remove FlagGuard class

[coleen.phillimore at oracle.com]

Looks good!  Thank you for cleaning it up.
Coleen

On 5/16/18 2:06 PM, Gerard Ziemski wrote:
> Hi all,
>
> Please review this small fix where we remove unused FlagGuard class and FLAG_GUARD macro from hotspot and gtests.
>
> https://bugs.openjdk.java.net/browse/JDK-8200746
> http://cr.openjdk.java.net/~gziemski/8200746_rev1/
>
> Testing: mach5 hs-tier1,2
>
>
> cheers