feat: remove unused indices #1929

Job	Run time
Generate SDKs	3m 38s
Run OIDC conformity tests	8m 29s
Run tests and lints	2m 59s
Run end-to-end tests (memory)	4m 48s
Run HSM tests	5m 56s
Run end-to-end tests (memory, --jwt)	2m 39s
Run end-to-end tests (postgres)	2m 29s
Run end-to-end tests (postgres, --jwt)	1s
Run end-to-end tests (mysql)	2m 20s
Run end-to-end tests (mysql, --jwt)	2m 29s
Run end-to-end tests (cockroach)	5m 22s
Run end-to-end tests (cockroach, --jwt)	5m 21s
Build CLI docs	0s
Generate changelog	0s
Generate release	0s
Render version schema	0s
Draft newsletter	0s
Release SDKs	0s
Pending approval Slack notification	0s
Send newsletter	0s
	46m 31s

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