Remove SQL Server set up for duplicate permission tests

[KodaiD]

Description

This PR removes an unnecessary SQL Server setup for the duplicate permission test. Until the unified permission test is implemented (by #2896), we tested SQL Server permissions using the Core integration test with the following setup:

ci/no-superuser/create-no-superuser-sqlserver.sh

This PR removes the above setup to avoid duplicate permission testing for SQL Server.

Related issues and/or PRs

• Add JDBC database permission test #2896

Changes made

• Removed the SQL Server setup script from the duplicate permission test.
• Moved a step that creates a database with Japanese collation to ci.yaml from the shell script.

Checklist

• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes.
• I have considered whether similar issues could occur in other products, components, or modules if this PR is for bug fixes.
• Any remaining open issues linked to this PR are documented and up-to-date (Jira, GitHub, etc.).
• Tests (unit, integration, etc.) have been added for the changes.
• My changes generate no new warnings.
• Any dependent changes in other PRs have been merged and published.

Additional notes (optional)

N/A

Release notes

N/A

[komamitsu]

LGTM! 👍

[Torch3333]

LGTM, thank you!

[brfrn169]

LGTM! Thank you!

[feeblefakie]

LGTM! Thank you!

[kota2and3kan]

LGTM! Thank you!