Remove useless codes on DataSourceNodePersistService #10553

Job	Run time
Import Global Environment / init-environment	2s
Build E2E Image	8m 16s
E2E - Agent with MySQL (proxy, tracing, jaeger)	6m 8s
E2E - Agent with MySQL (proxy, tracing, zipkin)	6m 49s
E2E - Agent with MySQL (proxy, metrics, prometheus)	6m 47s
E2E - Agent with MySQL (proxy, logging, file)	8m 10s
E2E - Agent with MySQL (jdbc, logging, file)	6m 6s
E2E - Agent with MySQL (jdbc, metrics, prometheus)	6m 42s
E2E - Agent with MySQL (jdbc, tracing, jaeger)	6m 6s
E2E - Agent with MySQL (jdbc, tracing, zipkin)	6m 18s
	1h 1m 24s

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