Remove debug message about pruning active leaves #5794

Job	Run time
preflight / preflight	41s
preflight / ci-versions	56s
test-full-crypto-feature	2m 43s
cargo-check-benches (master)	20m 58s
cargo-check-benches (current)	22m 18s
test-frame-ui	46m 33s
test-node-metrics	10m 46s
cargo-check-all-crate-macos	11m 23s
cargo-check-each-crate (1)	18m 41s
cargo-check-each-crate (2)	19m 52s
cargo-check-each-crate (3)	8m 20s
cargo-check-each-crate (4)	17m 40s
cargo-check-each-crate (5)	25m 37s
cargo-check-each-crate (6)	14m 55s
cargo-check-each-crate (7)	30m 8s
test-frame-examples-compile-to-wasm	3m 4s
test-deterministic-wasm	6m 29s
check-tracing	2m 32s
check-metadata-hash	6m 16s
node-bench-regression-guard	11s
All test misc tests passed	1s
	4h 30m 4s

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