refactor(gae8): remove unused datastore queries region tag

[Kef131]

Fixes #
b/347352390

Description

Removes unused snippet region tag gae_java8_datastore_ancestor_query

Checklist

Testing

• I have tested this change on a live environment and verified it works as intended.
• Tests pass: mvn clean verify required
• Lint passes: mvn -P lint checkstyle:check required
• Static Analysis: mvn -P lint clean compile pmd:cpd-check spotbugs:check advisory only

Compliance & Style

• I have followed Sample Format Guide
• pom.xml parent set to latest shared-configuration
• Appropriate changes to README are included in PR
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample

Post-Approval Actions

• Please merge this PR for me once it is approved

[gemini-code-assist]

Code Review

This pull request removes the App Engine Datastore ancestor query documentation region tags (gae_java8_datastore_ancestor_query) from the QueriesTest.java test file. There are no review comments to address, and the changes look clean and straightforward.

[angelcaamal]

Didn't find any usage of this region tag, LGTM!

[snippet-bot]

Here is the summary of changes.

You are about to delete 1 region tag.

• appengine-java8/datastore/src/test/java/com/example/appengine/QueriesTest.java:186, tag gae_java8_datastore_ancestor_query

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