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-rw-r--r--src/libsyntax/ext/expand.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 201e8d69494..3a8f9126b49 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -926,7 +926,6 @@ impl<'feat> ExpansionConfig<'feat> {
         fn enable_trace_macros = trace_macros,
         fn enable_allow_internal_unstable = allow_internal_unstable,
         fn enable_custom_derive = custom_derive,
-        fn enable_pushpop_unsafe = pushpop_unsafe,
     }
 }