RFR: 8232211: Remove dead code from os.hpp|cpp

[David Holmes]

Clean up looks good!

Some interesting snippets in there :)

Thanks,
David

On 15/10/2019 10:28 pm, Claes Redestad wrote:
> Hi,
> 
> feel free to review this patch which simply removes a number of
> dead and/or effectively unused methods from our os interface
> 
> Webrev: http://cr.openjdk.java.net/~redestad/8232211/open.00/
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8232211
> 
> Testing: tier1-2,5 (includes minimal VM builds)
> 
> Thanks!
> 
> /Claes