optimize: dont return error when transHandler not implement graceful shutdown

[joway]

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optimize

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optimize: 当 transHandler 没有实现 GracefulShutdown 接口时，不返回报错

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.02 🎉

Comparison is base (51e728f) 68.94% compared to head (aa41bdf) 68.96%.

❗ Current head aa41bdf differs from pull request most recent head df3626c. Consider uploading reports for the commit df3626c to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #954      +/-   ##
===========================================
+ Coverage    68.94%   68.96%   +0.02%     
===========================================
  Files          244      244              
  Lines        17937    17937              
===========================================
+ Hits         12366    12371       +5     
+ Misses        4458     4452       -6     
- Partials      1113     1114       +1     

Impacted Files	Coverage Δ
pkg/remote/trans_pipeline.go	79.66% <0.00%> (ø)

... and 5 files with indirect coverage changes

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