remove opencensus bridge support

[codeboten]

trafficstars

This removes the configuration of the OpenCensus bridge from the Collector. This means that any metric still relying on it will no longer be emitting metrics.

Closes #10414

This is blocked until https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/29867 is completed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.08%. Comparing base (6d32c09) to head (8099032).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10406   +/-   ##
=======================================
  Coverage   92.07%   92.08%           
=======================================
  Files         405      405           
  Lines       18862    18856    -6     
=======================================
- Hits        17367    17363    -4     
+ Misses       1135     1134    -1     
+ Partials      360      359    -1     

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[github-actions[bot]]

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

[codeboten]

not stale, still planning on moving this forward, just finishing up the blocking PR

[codeboten]

Do we still have components using opencensus? I see two of them are mine, but I can commit to getting them migrated before the new release in two weeks.

There are 4 as listed in https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/29867

[codeboten]

After discussing this further, i'll add a feature gate before this change.

[codeboten]

This will stay in draft until https://github.com/open-telemetry/opentelemetry-collector/pull/10542 has been merged and released.