chore: remove unused columns from scylla #22311

Job	Run time
Package Unit (jobsdb)	2m 42s
Unit	11m 29s
Integration (oss)	4m 8s
Package Unit (integration_test/docker_test)	6m 8s
Warehouse Integration (bigquery)	13m 18s
Integration (enterprise)	4m 23s
Package Unit (integration_test/kafka_batching)	3m 59s
Warehouse Integration (clickhouse)	4m 48s
Warehouse Integration (datalake)	4m 27s
Package Unit (integration_test/multi_tenant_test)	3m 57s
Warehouse Integration (deltalake)	11m 13s
Package Unit (integration_test/reporting_dropped_events)	4m 58s
Package Unit (integration_test/reporting_error_index)	5m 56s
Warehouse Integration (mssql)	2m 35s
Package Unit (integration_test/warehouse)	7m 18s
Warehouse Integration (azure-synapse)	2m 33s
Package Unit (integration_test/tracing)	6m 33s
Warehouse Integration (postgres)	6m 54s
Package Unit (integration_test/backendconfigunavailability)	5m 50s
Warehouse Integration (redshift)	23m 50s
Package Unit (integration_test/trackedusersreporting)	5m 32s
Warehouse Integration (snowflake)	10m 8s
Package Unit (processor)	7m 8s
Package Unit (regulation-worker)	2m 33s
Package Unit (router)	10m 34s
Package Unit (services)	9m 8s
Package Unit (services/rsources)	4m 18s
Package Unit (services/dedup)	16m 15s
Package Unit (suppression-backup-service)	1m 25s
Package Unit (warehouse)	10m 56s
All	1s
Coverage	0s
	3h 34m 57s

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