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-rw-r--r--src/libsyntax/ext/build.rs4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index db4929854b3..c4c2fed778f 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use core::prelude::*;
-
 use ast;
 use codemap;
 use codemap::span;
@@ -18,8 +16,6 @@ use ext::build;
 
 use opt_vec::OptVec;
 
-use core::option;
-
 pub struct Field {
     ident: ast::ident,
     ex: @ast::expr