RFR: 8371130: Remove String template leftovers

[duke]

On Tue, 4 Nov 2025 09:22:27 GMT, Jonas Norlinder <duke at openjdk.org> wrote:

> Hi all,
> 
> This is a trivial removal of methods that is no longer needed due since the String template function is now removed [JDK-8329948](https://bugs.openjdk.org/browse/JDK-8329948).
> 
> Testing: tier1-2.

@JonasNorlinder 
Your change (at version af96666bc58ed58fa9982d822df9f4fae8118411) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/28125#issuecomment-3486255316