refactor: use slices.Contains to simplify code #4128

Job	Run time
Basic Checks	3m 14s
Unit Tests	23m 34s
Integration Tests (raft)	12m 34s
Integration Tests (pvtdata)	11m 49s
Integration Tests (pvtdatapurge e2e)	20m 26s
Integration Tests (ledger)	13m 39s
Integration Tests (lifecycle)	6m 12s
Integration Tests (smartbft)	20m 4s
Integration Tests (discovery gossip devmode pluggable)	8m 38s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	17m 11s
Integration Tests (sbe nwo msp)	8m 7s
	2h 25m 28s

Provide feedback