[chore] delete unused method on nopHost

[atoulme]

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Description

Delete GetExporters on nopHost as it is no longer part of the interface signature.

This is a no-op and no change in API exposed directly is present since nopHost is not exported.

[codecov[bot]]

Codecov Report

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

Project coverage is 91.70%. Comparing base (6029cd0) to head (2676db0). Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10717      +/-   ##
==========================================
+ Coverage   91.68%   91.70%   +0.02%     
==========================================
  Files         411      411              
  Lines       19294    19292       -2     
==========================================
+ Hits        17689    17692       +3     
+ Misses       1243     1239       -4     
+ Partials      362      361       -1     

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[songy23]

Seems contrib tests need updates too

[codeboten]

@atoulme can you confirm that contrib can be updated to not use this method?

[atoulme]

I can confirm, it will take a PR to contrib to fix this.

[mx-psi]

routingprocessor needs a fix

[github-actions[bot]]

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

[atoulme]

https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/34899 is open to unblock.