Refactor get_account_id_from_seed / get_from_seed to one common place #3434

Job	Run time
preflight / preflight	38s
preflight / ci-versions	59s
test-frame-ui	26m 34s
test-full-crypto-feature	2m 32s
cargo-check-benches (master)	20m 3s
test-node-metrics	12m 3s
cargo-check-benches (current)	22m 35s
cargo-check-all-crate-macos	10m 54s
cargo-check-each-crate (1)	22m 45s
cargo-check-each-crate (2)	20m 31s
cargo-check-each-crate (3)	5m 6s
cargo-check-each-crate (4)	21m 39s
cargo-check-each-crate (5)	30m 0s
cargo-check-each-crate (6)	13m 48s
cargo-check-each-crate (7)	30m 32s
test-frame-examples-compile-to-wasm	2m 59s
test-deterministic-wasm	7m 39s
check-tracing	2m 26s
check-metadata-hash	6m 50s
node-bench-regression-guard	13s
All test misc tests passed	1s
	4h 20m 47s

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