Revert "Alerting: Add an index to alert_rule_version table on (rule_org_id, rule_uid) (#102347)" (#102368)

This reverts commit 9491fa1895.

pkg/services/sqlstore/migrations/migrations.go

@@ -152,7 +152,5 @@ func (oss *OSSMigrations) AddMigration(mg *Migrator) {
 
 	ualert.AddAlertRuleMissingSeriesEvalsToResolve(mg)
 
-	ualert.AddAlertRuleVersionUIDIndex(mg)
-
 	accesscontrol.AddDatasourceDrilldownRemovalMigration(mg)
 }

pkg/services/sqlstore/migrations/ualert/alert_rule_version_uid_index.go

@@ -1,15 +0,0 @@
-package ualert
-
-import (
-	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
-)
-
-// AddAlertRuleVersionUIDIndex adds an index to the alert_rule_version table on (rule_org_id, rule_uid) columns.
-func AddAlertRuleVersionUIDIndex(mg *migrator.Migrator) {
-	mg.AddMigration("add index to alert_rule_version table on (rule_org_id, rule_uid)",
-		migrator.NewAddIndexMigration(
-			migrator.Table{Name: "alert_rule_version"},
-			&migrator.Index{Cols: []string{"rule_org_id", "rule_uid"}, Type: migrator.IndexType},
-		),
-	)
-}