RFR: 8359225: Remove unused test/jdk/javax/script/MyContext.java

[Volkan Yazici]

On Fri, 13 Jun 2025 08:52:37 GMT, Athijegannathan Sundararajan <sundar at openjdk.org> wrote:

>> Both `javax/script/PluggableContextTest.java` and its companion `test/jdk/javax/script/MyContext.java` were added in [JDK-6398614](https://bugs.openjdk.org/browse/JDK-6398614). [JDK-8246113](https://bugs.openjdk.org/browse/JDK-8246113) removed `PluggableContextTest`, yet forgot `MyContext`, and rendered it redundant. Remove `MyContext` too.
>
> LGTM

@sundararajana, thanks for the review.

For completeness, `tier1,2` results are attached to the ticket.

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PR Comment: https://git.openjdk.org/jdk/pull/25748#issuecomment-2969655592