chore(ai): Remove ai types not used

[ad-astra-video]

What does this pull request do? Explain your changes. (required)
Removes types included with remote ai worker merge that are not used.

Specific updates (required)

• removed two types in core/ai_worker.go that are not used

How did you test each of these updates (required)
Types are not used.

Does this pull request close any open issues?
No

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass all AI tests pass
• README and other documentation updated
• Pending changelog updated

[rickstaa]

Thanks 🚀!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.07802%. Comparing base (c41f3c4) to head (a238a78).
Report is 5 commits behind head on ai-video.

Additional details and impacted files

@@                 Coverage Diff                 @@
##            ai-video       #3221         +/-   ##
===================================================
- Coverage   36.07820%   36.07802%   -0.00018%     
===================================================
  Files            124         124                 
  Lines          34525       34503         -22     
===================================================
- Hits           12456       12448          -8     
+ Misses         21381       21367         -14     
  Partials         688         688                 

Files with missing lines	Coverage Δ
core/ai_worker.go	35.64494% <ø> (+0.63132%)	⬆️

... and 1 file with indirect coverage changes

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Files with missing lines	Coverage Δ
core/ai_worker.go	35.64494% <ø> (+0.63132%)	⬆️

... and 1 file with indirect coverage changes