diff --git a/internal/controller/sharded.go b/internal/controller/sharded.go
index 0b7bbff..756c8cc 100644
--- a/internal/controller/sharded.go
+++ b/internal/controller/sharded.go
@@ -48,14 +48,13 @@ func (r *StCtrlErrSet) AsResult() (ctrl.Result, error) {
 	if r.Update != nil {
 		errMap["update-status"] = r.Update
 	}
-	mergedErr := util.MergeErrorsWithTag(errMap)
-	if mergedErr == nil {
+	if len(errMap) == 0 {
 		if updateConflict {
 			return ctrl.Result{Requeue: true}, nil
 		} else {
 			return ctrl.Result{}, nil
 		}
 	} else {
-		return ctrl.Result{Requeue: true}, mergedErr
+		return ctrl.Result{Requeue: true}, &util.MultiTaggedError{Errors: errMap}
 	}
 }
diff --git a/internal/util/mutierror.go b/internal/util/mutierror.go
index 1f60f51..e337e07 100644
--- a/internal/util/mutierror.go
+++ b/internal/util/mutierror.go
@@ -99,17 +99,3 @@ func (e *MultiTaggedError) Error() string {
 	}
 	return strings.Join(errStrs, "; ")
 }
-
-// MergeErrorsWithTag merges multiple errors into one with tags.
-func MergeErrorsWithTag(errors map[string]error) *MultiTaggedError {
-	errMap := make(map[string]error)
-	for tag, err := range errors {
-		if err != nil {
-			errMap[tag] = err
-		}
-	}
-	if len(errMap) == 0 {
-		return nil
-	}
-	return &MultiTaggedError{Errors: errMap}
-}
diff --git a/internal/util/mutierror_test.go b/internal/util/mutierror_test.go
index 38c909b..c7d0483 100644
--- a/internal/util/mutierror_test.go
+++ b/internal/util/mutierror_test.go
@@ -20,9 +20,9 @@ package util
 
 import (
 	"fmt"
-	"github.com/stretchr/testify/assert"
-	"k8s.io/utils/strings/slices"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestMergeErrors(t *testing.T) {
@@ -38,23 +38,3 @@ func TestMergeErrors(t *testing.T) {
 	err4 := MergeErrors(nil, nil)
 	assert.Nil(t, err4)
 }
-
-func TestMergeErrorsWithTags(t *testing.T) {
-	err1 := MergeErrorsWithTag(map[string]error{
-		"tag1": fmt.Errorf("foo"),
-		"tag2": fmt.Errorf("bar"),
-	})
-	assert.True(t, slices.Contains([]string{"[tag1] foo; [tag2] bar", "[tag2] bar; [tag1] foo"}, err1.Error()))
-
-	err2 := MergeErrorsWithTag(map[string]error{
-		"tag1": fmt.Errorf("foo"),
-		"tag2": nil,
-	})
-	assert.Equal(t, "[tag1] foo", err2.Error())
-
-	err3 := MergeErrorsWithTag(map[string]error{
-		"tag1": nil,
-		"tag2": nil,
-	})
-	assert.Nil(t, err3)
-}