Merge branch 'master' into escape-reason-docs

1 files changed, 1 insertions, 4 deletions

diff --git a/src/libsyntax_ext/lib.rs b/src/libsyntax_ext/lib.rs
index 66d6c0570ac..e31b29d5cc1 100644
--- a/src/libsyntax_ext/lib.rs
+++ b/src/libsyntax_ext/lib.rs
@@ -50,8 +50,7 @@ pub mod deriving;
 
 use std::rc::Rc;
 use syntax::ast;
-use syntax::ext::base::{MacroExpanderFn, NormalTT, IdentTT, MultiModifier, NamedSyntaxExtension};
-use syntax::ext::tt::macro_rules::MacroRulesExpander;
+use syntax::ext::base::{MacroExpanderFn, NormalTT, MultiModifier, NamedSyntaxExtension};
 use syntax::symbol::Symbol;
 
 pub fn register_builtins(resolver: &mut syntax::ext::base::Resolver,
@@ -61,8 +60,6 @@ pub fn register_builtins(resolver: &mut syntax::ext::base::Resolver,
         resolver.add_ext(ast::Ident::with_empty_ctxt(name), Rc::new(ext));
     };
 
-    register(Symbol::intern("macro_rules"), IdentTT(Box::new(MacroRulesExpander), None, false));
-
     macro_rules! register {
         ($( $name:ident: $f:expr, )*) => { $(
             register(Symbol::intern(stringify!($name)),