RFR: 8232070: ZGC: Remove unused ZVerifyLoadBarriers

[Per Liden]

Thanks Thomas!

/Per

On 10/10/19 5:23 PM, Thomas Schatzl wrote:
> Hi,
> 
> On 09.10.19 23:04, Per Liden wrote:
>> After JDK-8230565, we left the develop flag ZVerifyLoadBarriers 
>> around, which is no longer used and can be removed.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8232070
>> Webrev: http://cr.openjdk.java.net/~pliden/8232070/webrev.0
> 
>    looks good and trivial.
> 
> Thomas
>