[Improvement] Remove the unused newDaemonSingleThreadExecutor

[rickchengx]

Purpose of the pull request

• close: [Improvement] Remove the unused newDaemonSingleThreadExecutor #14519
• newDaemonSingleThreadExecutor is moved to ThreadUtils

Brief change log

Verify this pull request

[codecov-commenter]

Codecov Report

Merging #14520 (018f456) into dev (3e3e859) will decrease coverage by 0.01%.
The diff coverage is n/a.

❗ Current head 018f456 differs from pull request most recent head 259c5c8. Consider uploading reports for the commit 259c5c8 to get more accurate results

@@             Coverage Diff              @@
##                dev   #14520      +/-   ##
============================================
- Coverage     38.75%   38.74%   -0.01%     
  Complexity     4579     4579              
============================================
  Files          1237     1237              
  Lines         43534    43529       -5     
  Branches       4822     4822              
============================================
- Hits          16871    16867       -4     
+ Misses        24791    24789       -2     
- Partials       1872     1873       +1     

Impacted Files	Coverage Δ
...duler/plugin/task/api/AbstractCommandExecutor.java	0.00% <ø> (ø)

... and 2 files with indirect coverage changes

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
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