RFR: 8256692: Zero: remove obsolete block from ZeroInterpreter::native_entry

[Aleksey Shipilev]

On Thu, 19 Nov 2020 19:38:32 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> There is a block that is protected by #if 0. Seems to be protected by it after [JDK-8239782](https://bugs.openjdk.java.net/browse/JDK-8256692), and it is completely unnecessary after [JDK-8255617](https://bugs.openjdk.java.net/browse/JDK-8255617).
>
> This is trivially good.

Thanks!

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PR: https://git.openjdk.java.net/jdk/pull/1328