refactor(task_manager): Remove unnecessary error log in RunGC

[yxxhero]

Description

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 34.40%. Comparing base (8c23c8b) to head (6102893).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3985   +/-   ##
=======================================
  Coverage   34.40%   34.40%           
=======================================
  Files         341      341           
  Lines       40072    40071    -1     
=======================================
  Hits        13786    13786           
+ Misses      25380    25379    -1     
  Partials      906      906           

Flag	Coverage Δ
unittests	34.40% <ø> (+<0.01%)	⬆️

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

Files with missing lines	Coverage Δ
scheduler/resource/standard/task_manager.go	87.80% <ø> (+2.09%)	⬆️

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[Liam-Zhao]

LGTM

[gaius-qi]

LGTM

[chlins]

lgtm