enhance: [2.5] Remove frequent json stats distribution log

[congqixia]

Info log is too frequent only printing the json stats & index info

[congqixia]

/kind branch-feature

[sre-ci-robot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.98%. Comparing base (f142b5b) to head (3488d32).
Report is 1 commits behind head on 2.5.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.5   #40027      +/-   ##
==========================================
+ Coverage   80.97%   80.98%   +0.01%     
==========================================
  Files        1422     1422              
  Lines      201488   201487       -1     
==========================================
+ Hits       163155   163177      +22     
+ Misses      32631    32611      -20     
+ Partials     5702     5699       -3     

Components	Coverage Δ
Client	79.28% <ø> (ø)
Core	70.17% <ø> (ø)
Go	82.89% <ø> (+0.01%)	⬆️

Files with missing lines	Coverage Δ
internal/querynodev2/services.go	86.65% <ø> (+0.39%)	⬆️

... and 24 files with indirect coverage changes