RFR: 8245450: ZGC: Remove unused ZArguments::initialize_platform()

[Per Liden]

Thanks Thomas!

I also think it's trivial, so I'll go ahead and push it.

/Per

On 5/20/20 10:55 AM, Thomas Schatzl wrote:
> Hi,
> 
> On 20.05.20 10:53, Per Liden wrote:
>> I noticed that ZArguments::initialize_platform() is now empty on all 
>> platforms, so let's remove it.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8245450
>> Webrev: http://cr.openjdk.java.net/~pliden/8245450/webrev.0
>>
>> /Per
> 
>    looks good and trivial.
> 
> Thomas