diff --git a/weed/filer/permission.go b/weed/filer/permission.go
deleted file mode 100644
index 0d8b8292b..000000000
--- a/weed/filer/permission.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package filer
-
-func hasWritePermission(dir *Entry, entry *Entry) bool {
-
-	if dir == nil {
-		return false
-	}
-
-	if dir.Uid == entry.Uid && dir.Mode&0200 > 0 {
-		return true
-	}
-
-	if dir.Gid == entry.Gid && dir.Mode&0020 > 0 {
-		return true
-	}
-
-	if dir.Mode&0002 > 0 {
-		return true
-	}
-
-	return false
-}