Remove ty_mac

src/libsyntax/ast.rs

@@ -861,7 +861,6 @@ pub enum ty_ {
     ty_bare_fn(@TyBareFn),
     ty_tup(~[Ty]),
     ty_path(Path, Option<OptVec<TyParamBound>>, NodeId), // for #7264; see above
-    ty_mac(mac),
     ty_typeof(@Expr),
     // ty_infer means the type should be inferred instead of it having been
     // specified. This should only appear at the "top level" of a type and not