RFR(XS): 8187280: Remove unused methods from StubQueue

[Kim Barrett]

> On Nov 22, 2017, at 12:15 PM, Volker Simonis <volker.simonis at gmail.com> wrote:
> 
> Hi,
> 
> this somehow got lost and you boss is now urging me to finish it
> before Ramp Down Phase 1 :)
> 
> I've rebased it upon the current version of jdk/hs:
> 
> http://cr.openjdk.java.net/~simonis/webrevs/2017/8187280.v2/
> 
> Besides the usual directory shuffling because of the repo
> consolidation, the change is still the same.
> 
> Can somebody please sponsor this?

No sign of these in closed code either.

Looks good, and looks trivial.  I can sponsor.