[fix][backend]: remove unnecessary logs

[Ev4nFeng]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@           Coverage Diff           @@
##             main     #511   +/-   ##
=======================================
  Coverage   77.12%   77.12%           
=======================================
  Files         650      650           
  Lines       72541    72538    -3     
=======================================
- Hits        55949    55948    -1     
+ Misses      13254    13253    -1     
+ Partials     3338     3337    -1     

Flag	Coverage Δ
unittests	77.12% <ø> (+<0.01%)	⬆️

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

Files with missing lines	Coverage Δ
...in/task/service/taskexe/processor/auto_evaluate.go	86.04% <ø> (-0.04%)	⬇️
...dules/observability/domain/trace/entity/dataset.go	91.47% <ø> (-0.05%)	⬇️
...ility/domain/trace/service/trace_export_service.go	73.46% <ø> (-0.08%)	⬇️

... and 2 files with indirect coverage changes

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