Revert "[ISSUE #9333] Use fastjson2 in broker module"

[lizhimins]

Reverts #9334

In consideration of compatibility for minor versions, this commit will be temporarily reverted.
Once all changes related to fastjson2 are consolidated, we will release them in a new major version.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.91%. Comparing base (c66e758) to head (a94ddc3).
⚠️ Report is 134 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ocketmq/broker/processor/AdminBrokerProcessor.java	0.00%	1 Missing ⚠️
...ocketmq/broker/transaction/TransactionMetrics.java	87.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9387      +/-   ##
=============================================
- Coverage      47.97%   47.91%   -0.06%     
+ Complexity     11899    11897       -2     
=============================================
  Files           1307     1307              
  Lines          92016    92014       -2     
  Branches       11781    11780       -1     
=============================================
- Hits           44144    44088      -56     
- Misses         42387    42430      +43     
- Partials        5485     5496      +11     

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[lollipopjin]

LGTM