executor: removed unused code

[Rustin170506]

What problem does this PR solve?

Issue Number: ref #46351

Problem Summary:

What is changed and how it works?

• Removed dead code.
• Move it into a separate package.

Check List

Tests

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

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

Merging #46352 (495c004) into master (82ab553) will decrease coverage by 0.6678%.
Report is 3 commits behind head on master.
The diff coverage is 100.0000%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #46352        +/-   ##
================================================
- Coverage   73.3702%   72.7025%   -0.6678%     
================================================
  Files          1288       1309        +21     
  Lines        393583     399711      +6128     
================================================
+ Hits         288773     290600      +1827     
- Misses        86429      90668      +4239     
- Partials      18381      18443        +62     

Flag	Coverage Δ
integration	25.6733% <0.0000%> (?)
unit	73.3801% <100.0000%> (+0.0099%)	⬆️

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

Components	Coverage Δ
dumpling	54.0444% <ø> (ø)
parser	85.0741% <ø> (+0.0036%)	⬆️
br	47.9131% <ø> (-4.3757%)	⬇️

[Rustin170506]

self-check

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-23 09:01:03.4437547 +0000 UTC m=+1312827.992770686: ☑️ agreed by hawkingrei.
• 2023-08-23 09:07:31.454598997 +0000 UTC m=+1313216.003614982: ☑️ agreed by xhebox.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, time-and-fate, xhebox

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• OWNERS [hawkingrei,time-and-fate,xhebox]

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