br: remove evict slow store scheduler (#50776)

[ti-chi-bot]

This is an automated cherry-pick of #50776

What problem does this PR solve?

Issue Number: close #50566

Problem Summary:
one tikv has no leader and slow down br restore spee

What changed and how does it work?

remove evict-slow-store-scheduler when restore

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

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.5@75d0380). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.5     #51043   +/-   ##
================================================
  Coverage               ?   72.1698%           
================================================
  Files                  ?       1403           
  Lines                  ?     409172           
  Branches               ?          0           
================================================
  Hits                   ?     295299           
  Misses                 ?      94161           
  Partials               ?      19712           

Flag	Coverage Δ
unit	72.1698% <ø> (?)

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

Components	Coverage Δ
dumpling	53.9913% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	53.2065% <0.0000%> (?)

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files:

• br/OWNERS [BornChanger,Leavrth]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-02-18 08:39:26.406575964 +0000 UTC m=+173655.154199075: ☑️ agreed by BornChanger.
• 2024-02-18 08:40:15.443254329 +0000 UTC m=+173704.190877435: ☑️ agreed by Leavrth.

[Leavrth]

/retest

[Leavrth]

/retest

[BornChanger]

/type cherry-pick-release-7.1

[ti-chi-bot]

@BornChanger: The label(s) type/cherry-pick-release-7.1 cannot be applied, because the repository doesn't have them.

In response to this:

/type cherry-pick-release-7.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[BornChanger]

/type cherry-pick-for-release-7.1

[BornChanger]

/type cherry-pick-for-release-6.5