util: move server.TokenLimiter into util

[hawkingrei]

What problem does this PR solve?

Issue Number: close #xxx

Problem Summary:

What changed and how does it work?

just remove the code. it will be convenient for developers to use it.

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: Defined2014, xhebox

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• OWNERS [Defined2014,xhebox]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-28 02:34:16.074850206 +0000 UTC m=+2743809.831985776: ☑️ agreed by xhebox.
• 2024-05-28 02:36:11.344922331 +0000 UTC m=+2743925.102057904: ☑️ agreed by Defined2014.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.5339%. Comparing base (57d0b40) to head (35ad2aa).

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53598        +/-   ##
================================================
+ Coverage   72.4865%   74.5339%   +2.0473%     
================================================
  Files          1506       1507         +1     
  Lines        430600     430647        +47     
================================================
+ Hits         312127     320978      +8851     
+ Misses        99241      89783      -9458     
- Partials      19232      19886       +654     

Flag	Coverage Δ
integration	49.1561% <100.0000%> (?)
unit	71.3515% <100.0000%> (-0.1146%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.3790% <ø> (+8.9784%)	⬆️