diff --git a/crates/proc-macro-srv/src/server_impl.rs b/crates/proc-macro-srv/src/server_impl.rs
index 3d99942179..11dbd92009 100644
--- a/crates/proc-macro-srv/src/server_impl.rs
+++ b/crates/proc-macro-srv/src/server_impl.rs
@@ -16,9 +16,8 @@ mod token_stream;
 pub use token_stream::TokenStream;
 
 pub mod rust_analyzer_span;
-// mod symbol;
 pub mod token_id;
-// pub use symbol::*;
+
 use tt::Spacing;
 
 #[derive(Clone)]
diff --git a/crates/proc-macro-srv/src/server_impl/symbol.rs b/crates/proc-macro-srv/src/server_impl/symbol.rs
deleted file mode 100644
index 6863ce9599..0000000000
--- a/crates/proc-macro-srv/src/server_impl/symbol.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-//! Symbol interner for proc-macro-srv
-
-use std::{cell::RefCell, collections::HashMap, thread::LocalKey};
-
-thread_local! {
-    pub(crate) static SYMBOL_INTERNER: RefCell<SymbolInterner> = Default::default();
-}
-
-// ID for an interned symbol.
-#[derive(Hash, Eq, PartialEq, Copy, Clone)]
-pub struct Symbol(u32);
-
-pub(crate) type SymbolInternerRef = &'static LocalKey<RefCell<SymbolInterner>>;
-
-impl Symbol {
-    pub(super) fn intern(interner: SymbolInternerRef, data: &str) -> Symbol {
-        interner.with(|i| i.borrow_mut().intern(data))
-    }
-
-    pub(super) fn text(&self, interner: SymbolInternerRef) -> SmolStr {
-        interner.with(|i| i.borrow().get(self).clone())
-    }
-}
-
-#[derive(Default)]
-pub(crate) struct SymbolInterner {
-    idents: HashMap<SmolStr, u32>,
-    ident_data: Vec<SmolStr>,
-}
-
-impl SymbolInterner {
-    fn intern(&mut self, data: &str) -> Symbol {
-        if let Some(index) = self.idents.get(data) {
-            return Symbol(*index);
-        }
-
-        let index = self.idents.len() as u32;
-        let data = SmolStr::from(data);
-        self.ident_data.push(data.clone());
-        self.idents.insert(data, index);
-        Symbol(index)
-    }
-
-    fn get(&self, sym: &Symbol) -> &SmolStr {
-        &self.ident_data[sym.0 as usize]
-    }
-}