chore: remove unused example code (#1148) #2802

Job	Run time
Lint	1m 3s
Test Kotlin	1m 11s
Test Go	2m 55s
SQL	35s
Console	46s
Proto Breaking Change Check	9s
Integration Tests / prepare	4s
Integration Tests / integration (TestLifecycle)	2m 10s
Integration Tests / integration (TestHttpIngress)	2m 5s
Integration Tests / integration (TestDatabase)	2m 7s
Integration Tests / integration (TestExternalCalls)	2m 18s
Integration Tests / integration (TestPubSub)	2m 26s
Integration Tests / integration (TestSchemaGenerate)	2m 8s
Auto Version / Conventional Commits Auto-version	6s
	20m 3s

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