diff --git a/pkg/flagutil/flagutil.go b/pkg/flagutil/flagutil.go
deleted file mode 100644
index 079beb9fe89c..000000000000
--- a/pkg/flagutil/flagutil.go
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-// Package flagutil contains utilities and interfaces shared between
-// several test-infra commands.
-package flagutil
-
-import (
-	"flag"
-)
-
-// OptionGroup provides an interface which can be implemented by an
-// option handler (e.g. for GitHub or Kubernetes) to support generic
-// option-group handling.
-type OptionGroup interface {
-	// AddFlags injects options into the given FlagSet.
-	AddFlags(fs *flag.FlagSet)
-
-	// Validate validates options.
-	Validate(dryRun bool) error
-}