br: make table existence check unified on different br client (#58211)

[ti-chi-bot]

This is an automated cherry-pick of #58211

What problem does this PR solve?

Issue Number: close #58168

Problem Summary:

What changed and how does it work?

Remove the client check of tableExistenceCheck, now it works on both sql and cli client.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: BornChanger, YuJuncen

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Needs approval from an approver in each of these files:

• br/OWNERS [BornChanger,YuJuncen]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-13 07:56:49.54950203 +0000 UTC m=+597999.638304573: ☑️ agreed by BornChanger.
• 2024-12-13 08:01:52.256102814 +0000 UTC m=+598302.344905354: ☑️ agreed by YuJuncen.

[BornChanger]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-7.5@a6029bb). Learn more about missing BASE report.

Additional details and impacted files

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Flag	Coverage Δ
unit	72.1541% <ø> (?)

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