diff --git a/cmd/gignore/util.go b/cmd/gignore/util.go
deleted file mode 100644
index cce19b4..0000000
--- a/cmd/gignore/util.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package main
-
-import "os"
-
-func getEnv(key, defaultValue string) string {
-	value := os.Getenv(key)
-	if value == "" {
-		return defaultValue
-	}
-	return value
-}