fix: Revert "enhance: Support db for bulkinsert (#37012)"

[bigsheeper]

This reverts commit 6e90f9e.

issue: #31273

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[mergify]

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[codecov]

Codecov Report

Attention: Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.

Project coverage is 83.25%. Comparing base (aed3b94) to head (89edbb9).
Report is 8 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/datacoord/services.go	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #37420      +/-   ##
==========================================
+ Coverage   81.03%   83.25%   +2.21%     
==========================================
  Files        1305     1015     -290     
  Lines      183190   157768   -25422     
==========================================
- Hits       148455   131351   -17104     
+ Misses      29533    21215    -8318     
  Partials     5202     5202              

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	∅ <ø> (∅)
Go	83.28% <77.77%> (+<0.01%)	⬆️

Files with missing lines	Coverage Δ
internal/datacoord/import_job.go	100.00% <ø> (ø)
...nternal/distributed/proxy/httpserver/handler_v2.go	91.97% <100.00%> (ø)
...nternal/distributed/proxy/httpserver/request_v2.go	100.00% <100.00%> (ø)
internal/proxy/impl.go	85.29% <100.00%> (-0.07%)	⬇️
internal/datacoord/services.go	85.91% <60.00%> (-0.13%)	⬇️

... and 319 files with indirect coverage changes

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/run-cpu-e2e

[bigsheeper]

rerun go-sdk