Remove useless SQLSegmentConverter and refactor SQLNodeConverterEngine logic #7534

Job	Run time
Import Global Environment / init-environment	3s
E2E - Agent with MySQL (proxy, tracing, jaeger)	9m 23s
E2E - Agent with MySQL (proxy, tracing, zipkin)	8m 6s
E2E - Agent with MySQL (proxy, metrics, prometheus)	8m 32s
E2E - Agent with MySQL (proxy, logging, file)	9m 29s
E2E - Agent with MySQL (jdbc, logging, file)	8m 50s
E2E - Agent with MySQL (jdbc, metrics, prometheus)	8m 42s
E2E - Agent with MySQL (jdbc, tracing, jaeger)	8m 0s
E2E - Agent with MySQL (jdbc, tracing, zipkin)	9m 37s
	1h 10m 42s

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