service/telemetry: remove otelconftelemetry dependency

[axw]

Description

Replace the dependency from service/telemetry's MeterSettings by replacing the DefaultViews field with DefaultDroppedInstruments, which returns a slice of "selectors" given the metrics telemetry level. Selectors are a simplified version of a view selector.

Some other otelconf-related has been refactored:

• A test in the service package related to service.instance.id has been replaced by a new functional test in internal/e2e
• otelconf migration code has been moved into otelconftelemetry

Link to tracking issue

Fixes #13809

Testing

Updated tests.

Documentation

N/A

[codecov]

Codecov Report

❌ Patch coverage is 96.47059% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.13%. Comparing base (ebcdbd6) to head (c821cb0).
⚠️ Report is 23 commits behind head on main.

Files with missing lines	Patch %	Lines
service/service.go	95.45%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #14295   +/-   ##
=======================================
  Coverage   92.13%   92.13%           
=======================================
  Files         668      668           
  Lines       41529    41536    +7     
=======================================
+ Hits        38261    38270    +9     
+ Misses       2231     2230    -1     
+ Partials     1037     1036    -1     

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[codspeed-hq]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

✅ 56 untouched benchmarks
⏩ 20 skipped benchmarks¹

---

_{Comparing axw:telemetry-defaultdroppedinstruments (c821cb0) with main (1839ba7)}

Footnotes

1. 20 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[axw]

Splitting some changes out into #14308

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.