RFR: [JDK-8216578] Remove unused/obsolete method in JFR code

[Mikael Vidstedt]

Looks good, thanks for fixing!

(Not a Reviewer).

Cheers,
Mikael

> On Jan 11, 2019, at 10:19 AM, Simon Tooke <stooke at redhat.com> wrote:
> 
> Hello everybody,
> 
> In the discussion for JDK-8214776
> <https://bugs.openjdk.java.net/browse/JDK-8214776?focusedCommentId=14235677&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14235677>,
> Mikael Vidstedtpointed out that
> JfrOSInterface::JfrOSInterfaceImpl::functionality_not_implemented() was
> not used. 
> 
> This issue proposes removing that function, in the interest of clarity.
> 
> Issue: https://bugs.openjdk.java.net/browse/JDK-8216578
> Webrev: http://cr.openjdk.java.net/~stooke/webrevs/jdk-8216578/01
> 
> Please let me know what you think.
> 
> Thanks for your time,
> -Simon
>