Fix stratum client issue

[sanlee42]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
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• Documentation content changes
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What is the current behavior?

Issue Number: N/A

What is the new behavior?

Other information

[codecov]

Codecov Report

Merging #3362 (b0a1de2) into master (4652f82) will decrease coverage by 0.29%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3362      +/-   ##
==========================================
- Coverage   32.18%   31.90%   -0.28%     
==========================================
  Files         500      500              
  Lines       46814    46814              
  Branches    21311    21311              
==========================================
- Hits        15063    14930     -133     
+ Misses      17732    17731       -1     
- Partials    14019    14153     +134     

Flag	Coverage Δ
unittests	31.90% <0.00%> (-0.28%)	⬇️

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

Impacted Files	Coverage Δ
cmd/miner_client/src/stratum_client_service.rs	0.00% <0.00%> (ø)
executor/src/block_executor.rs	22.23% <0.00%> (-15.55%)	⬇️
consensus/src/dummy.rs	69.57% <0.00%> (-13.04%)	⬇️
chain/src/verifier/mod.rs	36.72% <0.00%> (-11.71%)	⬇️
vm/types/src/on_chain_config/mod.rs	42.47% <0.00%> (-10.95%)	⬇️
vm/natives/src/lib.rs	80.00% <0.00%> (-10.00%)	⬇️
chain/open-block/src/lib.rs	31.79% <0.00%> (-9.27%)	⬇️
vm/types/src/transaction_metadata.rs	56.72% <0.00%> (-7.46%)	⬇️
vm/natives/src/account.rs	25.00% <0.00%> (-6.25%)	⬇️
vm/vm-runtime/src/starcoin_vm.rs	37.01% <0.00%> (-5.19%)	⬇️
... and 66 more

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[jolestar]

https://github.com/starcoinorg/starcoin/pull/3362/files#diff-312fa06630778cef51a3c02ff84a3f74c09f8237d9fb8abb417a509c53006f25R301

//FIXME: Failed to receive this msg since upgrade actix to 0.13.

是不是可以删掉了？问题应该不在那边。