diff --git a/util.go b/util.go
index 5791c22..8037845 100644
--- a/util.go
+++ b/util.go
@@ -1,25 +1,9 @@
 package clover
 
 import (
-	"io/ioutil"
 	"os"
-	"path/filepath"
-	"strings"
 )
 
-func listDir(dir string) ([]string, error) {
-	fInfos, err := ioutil.ReadDir(dir)
-	if err != nil {
-		return nil, err
-	}
-
-	filenames := make([]string, 0, len(fInfos))
-	for _, info := range fInfos {
-		filenames = append(filenames, info.Name())
-	}
-	return filenames, nil
-}
-
 const defaultPermDir = 0777
 
 func makeDirIfNotExists(dir string) error {
@@ -29,11 +13,6 @@ func makeDirIfNotExists(dir string) error {
 	return nil
 }
 
-func getBasename(filename string) string {
-	baseName := filepath.Base(filename)
-	return strings.TrimSuffix(baseName, filepath.Ext(baseName))
-}
-
 func copyMap(m map[string]interface{}) map[string]interface{} {
 	mapCopy := make(map[string]interface{})
 	for k, v := range m {