remove 32bit OS handling for com registration fixing tool (#19523)
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### Link to issue number:
Closes #16200
### Summary of the issue:
NVDA would not update com registrations for ARM
### Description of user facing changes:
Unknown. after running the com registration fixing tool or the
installer, bugs may be fixed when interacting with ARM software
### Description of developer facing changes:
None
### Description of development approach:
- add functions register ARM dlls
- remove unnecessary handling for 32bit NVDA
### Testing strategy:
Tested running the COM reg tool on an ARM device, ensure it succeeded
### Known issues with pull request:
None
### Code Review Checklist:
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- [x] Documentation:
- Change log entry
- User Documentation
- Developer / Technical Documentation
- Context sensitive help for GUI changes
- [x] Testing:
- Unit tests
- System (end to end) tests
- Manual testing
- [x] UX of all users considered:
- Speech
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- Localization in other languages / culture than English
- [x] API is compatible with existing add-ons.
- [x] Security precautions taken.
