Link to issue number:

Closes #12209

Summary of the issue:

To fix some accessibility issues in our settings panel and checkable lists, we had to use a custom com server with comtypes. However, wx has built-in functionality to manipulate accessibility properties.

Description of how this pull request fixes the issue:

This pr removes our own accprop server in favour of wx' native support.

Testing strategy:

Tested that:

• Settings panels still have the role of property page
• Settings panels with a description have it set on the accessible object
• Check boxes for the NVDA modifier key list items are still read correctly
• Check boxes for a custom instance of AutoWidthColumnCheckListCtrl are still read correctly, tested by using it temporarily in place of the categories list control in NVDA"s settings dialog

Known issues with pull request:

None known

Change log entry:

• Changes for developers
  • the gui.accPropServer module as well as the AccPropertyOverride and ListCtrlAccPropServer classes from the gui.nvdaControls module have been removed in favor of WX' native support for overriding accessibility properties. When enhancing accessibility of WX controls, implement wx.Accessible instead

Code Review Checklist:

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Authors, please do a self-review and confirm you have considered the following items.
Mark items you have considered by checking them.
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• Pull Request description is up to date.
• Unit tests.
• System (end to end) tests.
• Manual tests.
• User Documentation.
• Change log entry.
• Context sensitive help for GUI changes.