fix fail test with cover flag #3914

Job	Run time
Basic Checks	1m 46s
Unit Tests	11m 1s
Integration Tests (raft)	13m 35s
Integration Tests (pvtdata)	14m 0s
Integration Tests (pvtdatapurge e2e)	13m 44s
Integration Tests (ledger)	20m 22s
Integration Tests (lifecycle)	8m 57s
Integration Tests (smartbft)	21m 58s
Integration Tests (discovery gossip devmode pluggable)	10m 50s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	23m 16s
Integration Tests (sbe nwo msp)	11m 29s
	2h 30m 58s

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