:fix: remove client id set on connect #3159

Job	Run time
Build	5m 22s
test-brokerAcl	16m 49s
test-broker	26m 20s
test-device	4m 37s
test-connection	13m 50s
test-device-management	10m 55s
test-tag	2m 23s
test-accountAndTranslator	6m 6s
test-datastore	15m 1s
test-jobEngineRestartOfflineDevice	9m 56s
test-jobEngineRestartOnlineDevice	9m 50s
test-jobEngineRestartOnlineDeviceSecondPart	8m 59s
test-jobEngineServiceStop	7m 37s
test-jobEngineStartOfflineDevice	10m 34s
test-jobEngineStartOnlineDevice	10m 29s
test-jobEngineStepDefinitions	7m 42s
test-jobsAndScheduler	2m 49s
test-jobsIntegration	9m 11s
test-jobsIntegrationBase	8m 33s
test-security	5m 40s
test-user	4m 3s
test-userIntegration	7m 54s
test-userIntegrationBase	7m 38s
build-javadoc	10m 9s
junit-tests	8m 49s
test-api-auth	6m 40s
test-deviceRegistry	11m 54s
test-endpoint	7m 43s
test-RoleAndGroup	2m 59s
test-api-parsing	6m 23s
test-api-corsfilter	6m 56s
	4h 33m 51s

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