refactor(tts): Remove tts_synthesize_text_audio_profile_beta duplicated region tag

[Kef131]

Description

Fixes #
b/536065373

Removes duplicated region tag tts_synthesize_text_audio_profile_beta from texttospeech/beta/src/main/java/com/example/texttospeech/SynthesizeText.java to prevent region tag collisions and ensure accurate snippet mapping in documentation.
NOTE: Don't remove file because it is used and linked to other region tags, which if neccessary will be treated in their own bug.

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 tts_synthesize_text_audio_profile_beta region tags from the SynthesizeText.java file. There are no review comments, and I have no feedback to provide.

[snippet-bot]

Here is the summary of changes.

You are about to delete 1 region tag.

• texttospeech/beta/src/main/java/com/example/texttospeech/SynthesizeText.java:84, tag tts_synthesize_text_audio_profile_beta

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