fixed internal logger dumplicated output

[kaiqli]

Description

Linked issue(s)/Pull request(s)

Type of Change

• Non-breaking bug fix
• Breaking bug fix
• New feature
• Test
• Doc update
• Docker update

Related Component

• Simulation toolkit
• RL toolkit
• Distributed toolkit

Has Been Tested

• OS:
  • Windows
  • Mac OS
  • Linux
• Python version:
  • 3.6
  • 3.7
• Key information snapshot(s):

Needs Follow Up Actions

• New release package
• New docker image

Checklist

• Add/update the related comments
• Add/update the related tests
• Add/update the related documentations
• Update the dependent downstream modules usage

[codecov]

Codecov Report

Merging #299 (3e5da8e) into v0.2 (2887bb0) will decrease coverage by 0.45%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             v0.2     #299      +/-   ##
==========================================
- Coverage   68.75%   68.29%   -0.46%     
==========================================
  Files         115      115              
  Lines        6128     6123       -5     
==========================================
- Hits         4213     4182      -31     
- Misses       1915     1941      +26     

Flag	Coverage Δ
unittests	68.29% <0.00%> (-0.46%)	⬇️

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

Impacted Files	Coverage Δ
maro/communication/message.py	67.39% <0.00%> (-1.24%)	⬇️
maro/utils/logger.py	44.27% <0.00%> (-20.62%)	⬇️

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