Query History: Remove migration (#67470)

pkg/services/queryhistory/database.go

@@ -2,7 +2,6 @@ package queryhistory
 
 import (
 	"context"
-	"fmt"
 	"strconv"
 
 	"github.com/grafana/grafana/pkg/infra/db"
@@ -271,65 +270,6 @@ func (s QueryHistoryService) unstarQuery(ctx context.Context, user *user.SignedI
 	return dto, nil
 }
 
-// migrateQueries adds multiple queries into query history
-func (s QueryHistoryService) migrateQueries(ctx context.Context, usr *user.SignedInUser, cmd MigrateQueriesToQueryHistoryCommand) (int, int, error) {
-	queryHistories := make([]*QueryHistory, 0, len(cmd.Queries))
-	starredQueries := make([]*QueryHistoryStar, 0)
-
-	err := s.store.WithTransactionalDbSession(ctx, func(session *db.Session) error {
-		for _, query := range cmd.Queries {
-			uid := util.GenerateShortUID()
-			queryHistories = append(queryHistories, &QueryHistory{
-				OrgID:         usr.OrgID,
-				UID:           uid,
-				Queries:       query.Queries,
-				DatasourceUID: query.DatasourceUID,
-				CreatedBy:     usr.UserID,
-				CreatedAt:     query.CreatedAt,
-				Comment:       query.Comment,
-			})
-
-			if query.Starred {
-				starredQueries = append(starredQueries, &QueryHistoryStar{
-					UserID:   usr.UserID,
-					QueryUID: uid,
-				})
-			}
-		}
-
-		batchSize := 50
-		var err error
-		for i := 0; i < len(queryHistories); i += batchSize {
-			j := i + batchSize
-			if j > len(queryHistories) {
-				j = len(queryHistories)
-			}
-			_, err = session.InsertMulti(queryHistories[i:j])
-			if err != nil {
-				return err
-			}
-		}
-
-		for i := 0; i < len(starredQueries); i += batchSize {
-			j := i + batchSize
-			if j > len(starredQueries) {
-				j = len(starredQueries)
-			}
-			_, err = session.InsertMulti(starredQueries[i:j])
-			if err != nil {
-				return err
-			}
-		}
-		return err
-	})
-
-	if err != nil {
-		return 0, 0, fmt.Errorf("failed to migrate query history: %w", err)
-	}
-
-	return len(queryHistories), len(starredQueries), nil
-}
-
 func (s QueryHistoryService) deleteStaleQueries(ctx context.Context, olderThan int64) (int, error) {
 	var rowsCount int64