RFR: 8219817: Remove unused CollectedHeap::block_size()

[Stefan Karlsson]

Looks good.

StefanK

On 2019-02-27 09:47, Per Liden wrote:
> CollectedHeap::block_size() is never called. We should remove it and the 
> implementations provided by the different collectors.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8219817
> Webrev: http://cr.openjdk.java.net/~pliden/8219817/webrev.0
> 
> /Per