Remove clusters #17

Job	Run time
fmt	16s
build (gcc, current)	1h 4m 3s
cargo-deny (advisories)	49s
cackle	1m 28s
build (gcc, current, --check-test-tx-meta)	54m 56s
cargo-deny (bans licenses sources)	50s
rust-check-git-rev-deps	24s
build (gcc, next)	1h 4m 54s
build (gcc, next, --check-test-tx-meta)	55m 6s
build (clang, current)	55m 5s
build (clang, current, --check-test-tx-meta)	48m 46s
build (clang, next)	56m 14s
build (clang, next, --check-test-tx-meta)	49m 10s
complete	1s
	7h 32m 2s

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