RFR: 8359223: HttpClient: Remove leftovers from the SecurityManager cleanup [v2]

[p-nima]

On Fri, 13 Jun 2025 07:55:17 GMT, Volkan Yazici <vyazici at openjdk.org> wrote:

>> Removes following files added in [JDK-8235459](https://bugs.openjdk.org/browse/JDK-8235459) and are forgotten to be removed during the `SecurityManager`-removal ([JDK-8344228](https://bugs.openjdk.org/browse/JDK-8344228)):
>> 
>> 
>> test/jdk/java/net/httpclient/FilePublisher/FilePublisherPermsTest.java
>> test/jdk/java/net/httpclient/FilePublisher/SecureZipFSProvider.java
>> 
>> 
>> Subsequently moved `test/jdk/java/net/httpclient/FilePublisher/FilePublisherTest.java`, the only file remained in that folder, one level up.
>
> Volkan Yazici has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
> 
>  - Move `FilePublisherTest` one level up
>  - Merge remote-tracking branch 'upstream/master' into hcSmFollowUp
>  - Remove leftover tests from the SecurityManager cleanup

Please correct me if I am wrong, as per my understanding it is essential to test a custom provider (in this case SecureZipFSProvider), as the path would be dependent on the provider, and is not related to the security manager - [docs](https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/java/nio/file/spi/FileSystemProvider.java#L280)

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Changes requested by p-nima at github.com (no known OpenJDK username).

PR Review: https://git.openjdk.org/jdk/pull/25747#pullrequestreview-2932294202