RFR: 8357119: Make Zero the default and only variant of HotSpot for iOS [v2]

[Julian Waters]

On Fri, 16 May 2025 17:05:50 GMT, Johan Vos <jvos at openjdk.org> wrote:

> @johanvos How can you test if you are building for the device or an emulator?
> 
> If this can/should be supported, then we also need to write something about it in the documents, not only update configure.
> 
> And if we can't detect the difference, then maybe most of this PR will need to be scrapped.

I still think defaulting to Zero for iOS is helpful, but I can remove the restricting of valid iOS JVM variants to only Zero since that is problematic.

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PR Comment: https://git.openjdk.org/mobile/pull/35#issuecomment-2888045360