fix: incorrect usage of database/sql

GitOrigin-RevId: a6bc423928fb9910a76e0b18afa2fc2a56fc052d

Author: alnr

oryx/sqlxx/batch/create.go

@@ -246,10 +246,6 @@ func Create[T any](ctx context.Context, p *TracerConnection, models []*T, opts .
 	// Databases not supporting RETURNING will just return 0 rows.
 	count := 0
 	for rows.Next() {
-		if err := rows.Err(); err != nil {
-			return sqlcon.HandleError(err)
-		}
-
 		if err := setModelID(rows, pop.NewModel(models[count], ctx)); err != nil {
 			return err
 		}
@@ -260,10 +256,6 @@ func Create[T any](ctx context.Context, p *TracerConnection, models []*T, opts .
 		return sqlcon.HandleError(err)
 	}
 
-	if err := rows.Close(); err != nil {
-		return sqlcon.HandleError(err)
-	}
-
 	return sqlcon.HandleError(err)
 }