Remove unused import statement: `use rustc_hir ... ItemId`.

PiperOrigin-RevId: 488667332
diff --git a/cc_bindings_from_rs/bindings.rs b/cc_bindings_from_rs/bindings.rs
index 096b524..64ee4f9 100644
--- a/cc_bindings_from_rs/bindings.rs
+++ b/cc_bindings_from_rs/bindings.rs
@@ -7,7 +7,7 @@
 use itertools::Itertools;
 use proc_macro2::TokenStream;
 use quote::quote;
-use rustc_hir::{Item, ItemId, ItemKind, Node, Unsafety};
+use rustc_hir::{Item, ItemKind, Node, Unsafety};
 use rustc_interface::Queries;
 use rustc_middle::dep_graph::DepContext;
 use rustc_middle::ty::{self, Ty, TyCtxt}; // See <internal link>/ty.html#import-conventions