chore: Remove some unused files #4954

Job	Run time
Ensure `Cargo.lock` contains all required dependencies	7s
toolchains	3s
check (ubuntu-latest, 1.76.0, debug)	3m 26s
check (ubuntu-latest, stable, debug)	3m 10s
check (ubuntu-latest, nightly, debug)	5m 13s
check (macos-latest, 1.76.0, debug)	4m 9s
check (macos-latest, stable, debug)	3m 33s
check (macos-latest, nightly, debug)	6m 31s
check (windows-latest, 1.76.0, debug)	9m 54s
check (windows-latest, stable, debug)	9m 9s
check (windows-latest, nightly, debug)	10m 32s
check (ubuntu-latest, stable, release)	5m 8s
bench	0s
	1h 0m 55s

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