RFR (trivial): 8216189: Remove Klass::compute_is_subtype_of

[Harold David Seigel]

Hi Claes,

This looks good.

Thanks, Harold

On 1/5/2019 8:56 AM, Claes Redestad wrote:
> Hi,
>
> Klass::compute_is_subtype_of appears to be effectively unused
> and could be removed.
>
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8216189
> Webrev: http://cr.openjdk.java.net/~redestad/8216189/open.00/
>
> Testing: tier1
>
> /Claes