RFR: 8205679: Remove unused ThreadLocalAllocBuffer::undo_allocate()

[Per Liden]

Thanks for reviewing, Stefan!

/Per

On 2018-06-27 15:21, Stefan Karlsson wrote:
> I'm fine with this removal.
> 
> StefanK
> 
> On 2018-06-26 12:45, Per Liden wrote:
>> After JDK-8205676, the function 
>> ThreadLocalAllocBuffer::undo_allocate() is unused and can be removed.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8205679
>> Webrev: http://cr.openjdk.java.net/~pliden/8205679/webrev.0
>>
>> /Per