librustc_macros: remove redundant single component path import

rust-lang · bors · Feb 26, 2020 · Dec 26, 2019 · Feb 23, 2020 · Feb 22, 2020
commit 1892ff7aa6f7d82cbe18a531da3566fbd1939e23
diff --git a/src/librustc_macros/src/hash_stable.rs b/src/librustc_macros/src/hash_stable.rs
@@ -1,7 +1,6 @@
 use proc_macro2::{self, Ident};
 use quote::quote;
 use syn::{self, parse_quote, Meta, NestedMeta};
-use synstructure;
 
 struct Attributes {
     ignore: bool,