diff --git a/components/engine/pkg/testutil/helpers.go b/components/engine/pkg/testutil/helpers.go
index c291148712..adc76418e8 100644
--- a/components/engine/pkg/testutil/helpers.go
+++ b/components/engine/pkg/testutil/helpers.go
@@ -1,9 +1,6 @@
 package testutil
 
 import (
-	"strings"
-	"unicode"
-
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -14,20 +11,3 @@ func ErrorContains(t require.TestingT, err error, expectedError string) {
 	require.Error(t, err)
 	assert.Contains(t, err.Error(), expectedError)
 }
-
-// EqualNormalizedString compare the actual value to the expected value after applying the specified
-// transform function. It fails the test if these two transformed string are not equal.
-// For example `EqualNormalizedString(t, RemoveSpace, "foo\n", "foo")` wouldn't fail the test as
-// spaces (and thus '\n') are removed before comparing the string.
-func EqualNormalizedString(t require.TestingT, transformFun func(rune) rune, actual, expected string) {
-	require.Equal(t, strings.Map(transformFun, expected), strings.Map(transformFun, actual))
-}
-
-// RemoveSpace returns -1 if the specified runes is considered as a space (unicode)
-// and the rune itself otherwise.
-func RemoveSpace(r rune) rune {
-	if unicode.IsSpace(r) {
-		return -1
-	}
-	return r
-}