Remove further opentelemetry-java references

[fractalwrench]

Goal

Removes further references to opentelemetry-java in the project

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.39%. Comparing base (1fd5ac5) to head (b2fd5e5).
Report is 14 commits behind head on use-kt-clock.

Additional details and impacted files

@@               Coverage Diff                @@
##           use-kt-clock    #2318      +/-   ##
================================================
+ Coverage         85.37%   85.39%   +0.01%     
================================================
  Files               476      476              
  Lines             10500    10486      -14     
  Branches           1550     1546       -4     
================================================
- Hits               8964     8954      -10     
+ Misses              868      864       -4     
  Partials            668      668              

Files with missing lines	Coverage Δ
...oid/embracesdk/internal/otel/payload/SpanMapper.kt	58.53% <ø> (-0.29%)	⬇️
...ce/android/embracesdk/internal/otel/sdk/OtelExt.kt	74.28% <ø> (+7.61%)	⬆️

... and 4 files with indirect coverage changes

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[bidetofevil]

LGTM. I guess the toFailedSpan() used to be used by the resurrection code but isn't anymore?

[bidetofevil]

Ah, I guess this exists in SpanExt.kt still