w: disable functions unused on Windows #161

Job	Run time
cargo clippy -- -D warnings (ubuntu-latest)	20s
cargo check (ubuntu-latest)	17s
cargo clippy -- -D warnings (macOS-latest)	25s
cargo fmt --all -- --check	12s
cargo check (macOS-latest)	32s
Code Coverage (ubuntu-latest, unix)	1m 53s
cargo clippy -- -D warnings (windows-latest)	1m 33s
cargo check (windows-latest)	1m 33s
Code Coverage (macos-latest, macos)	2m 34s
Code Coverage (windows-latest, windows)	4m 58s
cargo test (ubuntu-latest)	32s
cargo test (macOS-latest)	42s
cargo test (windows-latest)	1m 55s
	17m 26s

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