chore: delete unused code

[sofisl]

Delete unused code

[snippet-bot[bot]]

Here is the summary of changes.

You are about to delete 2 region tags.

- [samples/generated/v1beta1/phishing_protection_service_v1_beta1.report_phishing.js:24](https://github.com/googleapis/nodejs-phishing-protection/blob/c4bf1cc473110af1de267f1ab55ab00308e2a02a/samples/generated/v1beta1/phishing_protection_service_v1_beta1.report_phishing.js#L24), tag `phishingprotection_v1beta1_generated_PhishingProtectionServiceV1Beta1_ReportPhishing_async` - [samples/quickstart.js:23](https://github.com/googleapis/nodejs-phishing-protection/blob/c4bf1cc473110af1de267f1ab55ab00308e2a02a/samples/quickstart.js#L23), tag `phishing_protection_quickstart`

---

This comment is generated by snippet-bot. If you find problems with this result, please file an issue at: https://github.com/googleapis/repo-automation-bots/issues. To update this comment, add snippet-bot:force-run label or use the checkbox below:

• [ ] Refresh this comment

[generated-files-bot[bot]]

Warning: This pull request is touching the following templated files:

• .kokoro/.gitattributes - .kokoro files are templated and should be updated in synthtool
• .kokoro/common.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/continuous/node12/common.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/continuous/node12/lint.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/continuous/node12/samples-test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/continuous/node12/system-test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/continuous/node12/test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/docs.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/lint.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/populate-secrets.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/node12/common.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/node12/samples-test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/node12/system-test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/node12/test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/windows/common.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/presubmit/windows/test.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/publish.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/release/docs-devsite.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/release/docs-devsite.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/release/docs.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/release/docs.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/release/publish.cfg - .kokoro files are templated and should be updated in synthtool
• .kokoro/samples-test.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/system-test.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/test.bat - .kokoro files are templated and should be updated in synthtool
• .kokoro/test.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/trampoline.sh - .kokoro files are templated and should be updated in synthtool
• .kokoro/trampoline_v2.sh - .kokoro files are templated and should be updated in synthtool
• .github/CODEOWNERS - CODEOWNERS should instead be modified via the codeowner_team property in .repo-metadata.json
• .github/workflows/ci.yaml - .github/workflows/ci.yaml (GitHub Actions) should be updated in synthtool
• .github/generated-files-bot.yml - .github/generated-files-bot.(yml|yaml) should be updated in synthtool
• samples/README.md - samples/README.md is managed by synthtool. However, a partials file can be used to update the README, e.g.: https://github.com/googleapis/nodejs-storage/blob/main/.readme-partials.yaml