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windows: Remove unnecessary `Send` and `Sync` implementations (#14659)

After a update to `windows-rs 0.57`, these two implementations are no
longer needed.

Release Notes:

- N/A
张小白 committed
beb8fbdf7fd3da118acdcd275eaa9cea7d621f32
Parent: d2501e8
Committed by GitHub <noreply@github.com> on 7/25/2024, 5:42:36 PM