enhance: use Delete instead of DeletePartialMatch to remove metrics

[jaime0815]

[mergify[bot]]

@jaime0815 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[jaime0815]

/run-cpu-e2e

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 40.00000% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 82.06%. Comparing base (efdbd8e) to head (233bfd6). Report is 15 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #33029      +/-   ##
==========================================
- Coverage   82.12%   82.06%   -0.06%     
==========================================
  Files        1007     1005       -2     
  Lines      127726   127660      -66     
==========================================
- Hits       104894   104765     -129     
- Misses      18875    18920      +45     
- Partials     3957     3975      +18     

Files	Coverage Δ
internal/datacoord/services.go	85.71% <ø> (-0.05%)	:arrow_down:
internal/metastore/kv/datacoord/kv_catalog.go	81.61% <ø> (-0.04%)	:arrow_down:
pkg/metrics/datacoord_metrics.go	76.92% <45.45%> (-23.08%)	:arrow_down:
internal/datacoord/meta.go	92.62% <35.71%> (-0.87%)	:arrow_down:

... and 44 files with indirect coverage changes

[czs007]

/approve /lgtm

[sre-ci-robot]

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This pull-request has been approved by: czs007, jaime0815

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