Clean up resource string references #1668
Description
The following types were hollowed out and moved out of WPF. Need to clean up references to them in the resource strings if they exist and are not in use.
- MediaPermission
- MediaPermissionAttribute
- MediaPermissionAudio
- MediaPermissionImage
- MediaPermissionVideo
- WebBrowserPermission
- WebBrowserPermissionAttribute
- WebBrowserPermissionLevel
- XamlLoadPermission
- XamlAccessLevel