Remove remnants of old crates #647

Job	Run time
Check unused dependencies	1m 1s
Audit dependencies	28s
Clippy (x86_64-unknown-linux-gnu, false, true)	42s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-gnu)	55s
Format	5s
Clippy (armv7-unknown-linux-gnueabihf, true, false, -target arm-linux-gnueabihf -mcpu=generic+v7a...	35s
Build and test (beta, ubuntu-latest, x86_64-unknown-linux-gnu)	53s
Smoke-test fuzzing targets	3m 57s
Clippy (x86_64-unknown-linux-musl, true, false, -target x86_64-linux-musl)	29s
Build and test (msrv, ubuntu-latest, x86_64-unknown-linux-gnu)	1m 24s
Validate man pages	10s
Smoke-test fuzzing targets (--all-features)	1m 34s
Clippy (x86_64-apple-darwin, true, false, -target x86_64-macos-gnu -g)	29s
Build and test (stable, ubuntu-latest, x86_64-unknown-linux-musl)	1m 12s
Build and test (stable, macos-latest, x86_64-apple-darwin)	2m 7s
Validate configs	26s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 2s
Build and test (msrv, ubuntu-latest, --all-features, x86_64-unknown-linux-gnu)	1m 15s
Build and test (stable, ubuntu-latest, --all-features, x86_64-unknown-linux-musl)	1m 3s
Build and test (stable, macos-latest, --all-features, x86_64-apple-darwin)	5m 32s
	25m 19s

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