fix lint

Signed-off-by: SungJin1212 <tjdwls1201@gmail.com>

Author: SungJin1212

pkg/ruler/ruler.go

@@ -776,13 +776,6 @@ func (r *Ruler) isUserOwned(userID string) bool {
 	return rulers.Includes(r.lifecycler.GetInstanceAddr())
 }
 
-func shardByUser(userID string) uint32 {
-	ringHasher := fnv.New32a()
-	// Hasher never returns err.
-	_, _ = ringHasher.Write([]byte(userID))
-	return ringHasher.Sum32()
-}
-
 func (r *Ruler) syncRules(ctx context.Context, reason string) error {
 	level.Info(r.logger).Log("msg", "syncing rules", "reason", reason)
 	r.rulerSync.WithLabelValues(reason).Inc()

pkg/ruler/rulestore/local/local.go

@@ -6,11 +6,11 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/cortexproject/cortex/pkg/util/users"
 	"github.com/pkg/errors"
 	promRules "github.com/prometheus/prometheus/rules"
 
 	"github.com/cortexproject/cortex/pkg/ruler/rulespb"
+	"github.com/cortexproject/cortex/pkg/util/users"
 )
 
 const (