br: revert "Add retry limit of connection err in fine grained backup"

[RidRisR]

What problem does this PR solve?

Issue Number: ref #57449 #58487

Problem Summary:

This is a Revert PR of #57713

What changed and how does it work?

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

[tiprow]

Hi @RidRisR. Thanks for your PR.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@a878e1f). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.1     #58496   +/-   ##
================================================
  Coverage               ?   71.1949%           
================================================
  Files                  ?       1468           
  Lines                  ?     423734           
  Branches               ?          0           
================================================
  Hits                   ?     301677           
  Misses                 ?     101532           
  Partials               ?      20525           

Flag	Coverage Δ
unit	71.1949% <0.0000%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.2305% <0.0000%> (?)

[RidRisR]

/retest

[tiprow]

@RidRisR: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 3pointer, Leavrth

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• br/OWNERS [3pointer,Leavrth]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-24 06:02:47.608421927 +0000 UTC m=+1541557.697224462: ☑️ agreed by Leavrth.
• 2024-12-24 06:02:56.126412391 +0000 UTC m=+1541566.215214929: ☑️ agreed by 3pointer.