Avoiding error log by removing ThreadLocal for Mqtt Client

[JackieTien97]

MQTT broker which IOTDB depended on is not a client-server 1 to 1 thread model, one server thread can serve multiple client connections and even one client connection can be served by different server threads.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 39.12%. Comparing base (761f4e7) to head (003b4c6).
Report is 33 commits behind head on master.

Files with missing lines	Patch %	Lines
...nal/metadata/fetcher/TableDeviceSchemaFetcher.java	0.00%	8 Missing ⚠️
...ache/iotdb/db/protocol/session/SessionManager.java	0.00%	5 Missing ⚠️
...l/metadata/fetcher/TableDeviceSchemaValidator.java	0.00%	4 Missing ⚠️
...ache/iotdb/db/protocol/mqtt/MPPPublishHandler.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #15745      +/-   ##
============================================
- Coverage     39.12%   39.12%   -0.01%     
  Complexity      198      198              
============================================
  Files          4835     4835              
  Lines        314195   314391     +196     
  Branches      39406    39434      +28     
============================================
+ Hits         122943   123010      +67     
- Misses       191252   191381     +129     

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[sonarqubecloud]

Quality Gate failed

Failed conditions
C Reliability Rating on New Code (required ≥ A)

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