refactor: use slices.Contains to simplify code #4125

Job	Run time
Basic Checks	3m 12s
Integration Tests (raft)	12m 14s
Unit Tests	23m 2s
Integration Tests (pvtdata)	12m 0s
Integration Tests (pvtdatapurge e2e)	20m 33s
Integration Tests (ledger)	13m 34s
Integration Tests (lifecycle)	6m 31s
Integration Tests (smartbft)	19m 52s
Integration Tests (discovery gossip devmode pluggable)	8m 21s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	16m 56s
Integration Tests (sbe nwo msp)	8m 18s
	2h 24m 33s

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