[v9] Remove deprecated loggers

[buenaflor]

📜 Description

💡 Motivation and Context

Closes #2684

💚 How did you test it?

Existing tests

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.12%. Comparing base (3e1c2c9) to head (a891e72).
Report is 2 commits behind head on v9.

Additional details and impacted files

@@            Coverage Diff             @@
##               v9    #2685      +/-   ##
==========================================
+ Coverage   89.06%   89.12%   +0.05%     
==========================================
  Files         261      261              
  Lines        8847     8842       -5     
==========================================
  Hits         7880     7880              
+ Misses        967      962       -5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[buenaflor]

@vaind hey I saw you added these deprecations a while ago, is this change the way we want it?

[vaind]

@vaind hey I saw you added these deprecations a while ago, is this change the way we want it?

Looks like I did it because it's useless now? I'd delete it completely if we can, not even leaving it for tests.

[buenaflor]

@vaind I deleted the dartLogger which was unused but the noOp logger is still used when setting the debug flag and is the default for the options.logger