JDK 10 RFR of 8186707: Remove libnio FileChannelImpl native close0() function

[Alan Bateman]

On 25/08/2017 01:33, Brian Burkhalter wrote:
> I found some more related dead code in the Windows implementation of 
> FileDispatcher which I think might as well be included in this review 
> request:
>
> http://cr.openjdk.java.net/~bpb/8186707/webrev.01/ 
> <http://cr.openjdk.java.net/%7Ebpb/8186707/webrev.01/>
>
Looks fine.