RFR: Trivial dead code cleanup

[Roman Kennke]

Am 11.05.2018 um 20:06 schrieb Zhengyu Gu:
> A trivial cleanup of dead code.
> 
> Webrev:
> http://cr.openjdk.java.net/~zgu/shenandoah/deadcode-cleanup/webrev.00/index.html
> 
> 
> 
> Test:
> 
>   hotspot_gc_shenandoah on Linux 64 (fastdebug + release)
> 
> Thanks,
> 
> -Zhengyu


Ok. It was non-trivial enough to make me think twice why
_process_strong_tasks might not be used ;-)

Roman