Remove unused matcher

pkg/util/validation/errors.go

@@ -172,7 +172,7 @@ func (list ErrorList) PrefixIndex(index int) ErrorList {
 	return list.Prefix(fmt.Sprintf("[%d]", index))
 }
 
-// NewValidationErrorFieldPrefixMatcher returns an errors.Matcher that returns true
+// NewErrorTypeMatcher returns an errors.Matcher that returns true
 // if the provided error is a Error and has the provided ErrorType.
 func NewErrorTypeMatcher(t ErrorType) utilerrors.Matcher {
 	return func(err error) bool {
@@ -183,18 +183,6 @@ func NewErrorTypeMatcher(t ErrorType) utilerrors.Matcher {
 	}
 }
 
-// NewValidationErrorFieldPrefixMatcher returns an errors.Matcher that returns true
-// if the provided error is a Error and has a field with the provided
-// prefix.
-func NewValidationErrorFieldPrefixMatcher(prefix string) utilerrors.Matcher {
-	return func(err error) bool {
-		if e, ok := err.(*Error); ok {
-			return strings.HasPrefix(e.Field, prefix)
-		}
-		return false
-	}
-}
-
 // Filter removes items from the ErrorList that match the provided fns.
 func (list ErrorList) Filter(fns ...utilerrors.Matcher) ErrorList {
 	err := utilerrors.FilterOut(utilerrors.NewAggregate(list), fns...)

pkg/util/validation/errors_test.go

@@ -105,18 +105,6 @@ func TestErrListFilter(t *testing.T) {
 	if len(list.Filter(NewErrorTypeMatcher(ErrorTypeInvalid))) != 1 {
 		t.Errorf("should filter")
 	}
-	if len(list.Filter(NewValidationErrorFieldPrefixMatcher("test"))) != 1 {
-		t.Errorf("should filter")
-	}
-	if len(list.Filter(NewValidationErrorFieldPrefixMatcher("test."))) != 2 {
-		t.Errorf("should filter")
-	}
-	if len(list.Filter(NewValidationErrorFieldPrefixMatcher(""))) != 0 {
-		t.Errorf("should filter")
-	}
-	if len(list.Filter(NewValidationErrorFieldPrefixMatcher("field."), NewErrorTypeMatcher(ErrorTypeDuplicate))) != 1 {
-		t.Errorf("should filter")
-	}
 }
 
 func TestErrListPrefix(t *testing.T) {