1 files changed, 0 insertions, 9 deletions
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index ec77b54a853..3b2df24e7d9 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -1002,15 +1002,6 @@ pub enum self_ty_ {
     sty_uniq(mutability)                       // `~self`
 }
 
-impl self_ty_ {
-    fn is_borrowed(&self) -> bool {
-        match *self {
-            sty_region(*) => true,
-            _ => false
-        }
-    }
-}
-
 pub type self_ty = spanned<self_ty_>;
 
 #[auto_encode]