[chore] Remove prometheus need to check test metrics in componenttest

[bogdandrutu]

No description provided.

[codeboten]

i love this idea, will need to do a full review but i think it makes sense to remove. are there still e2e tests that validate the output from the service?

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 122 lines in your changes missing coverage. Please review.

Project coverage is 91.86%. Comparing base (d3a1718) to head (f26d92d).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
component/componenttest/otelchecker.go	0.00%	106 Missing ⚠️
component/componenttest/obsreporttest.go	0.00%	16 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11172      +/-   ##
==========================================
- Coverage   92.28%   91.86%   -0.43%     
==========================================
  Files         413      413              
  Lines       19761    19766       +5     
==========================================
- Hits        18237    18158      -79     
- Misses       1152     1239      +87     
+ Partials      372      369       -3     

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[bogdandrutu]

i love this idea, will need to do a full review but i think it makes sense to remove. are there still e2e tests that validate the output from the service?

Yes in https://github.com/open-telemetry/opentelemetry-collector/blob/main/service/service_test.go

[bogdandrutu]

@codeboten ping :)

[codeboten]

/home/runner/work/opentelemetry-collector/opentelemetry-collector/.tools/golangci-lint run
Error: componenttest/otelchecker.go:131:49: `unknwon` is a misspelling of `unknown` (misspell)
		return metricdata.DataPoint[N]{}, fmt.Errorf("unknwon metric type: %T", a)