RFR JDK-8232724: Remove indirection with calling JNU_NewStringPlatform

[Alexey Ivanov]

Hi David, Christoph,

Thank you for your reviews.

On 29/10/2019 07:49, David Holmes wrote:
>> Shall I remove one of them? The one in jvm.h because it's unused?
>
> Yes please remove the unused one in jvm.h. 

The updated webrev:
http://cr.openjdk.java.net/~aivanov/8232724/webrev.01/

-- 
Regards,
Alexey