diff --git a/naga/src/front/wgsl/parse/lexer.rs b/naga/src/front/wgsl/parse/lexer.rs
index 5c6cd321a7..f71eae5c0f 100644
--- a/naga/src/front/wgsl/parse/lexer.rs
+++ b/naga/src/front/wgsl/parse/lexer.rs
@@ -310,27 +310,6 @@ impl<'a> Lexer<'a> {
             }
         }
     }
-    pub(in crate::front::wgsl) fn start_byte_offset_and_aggregate_comment_module(
-        &'a mut self,
-        comments: &mut Vec<Span>,
-    ) -> usize {
-        loop {
-            let start = self.current_byte_offset();
-            // Eat all trivia because `next` doesn't eat trailing trivia.
-            let (token, rest) = consume_token(self.input, false);
-            if let Token::CommentModule(_) = token {
-                self.input = rest;
-                let next = self.current_byte_offset();
-                comments.push(Span::new(start as u32, next as u32));
-            } else if let Token::Trivia = token {
-                self.input = rest;
-            } else if let Token::Comment(_) = token {
-                self.input = rest;
-            } else {
-                return self.current_byte_offset();
-            }
-        }
-    }
 
     pub const fn current_byte_offset(&self) -> usize {
         self.source.len() - self.input.len()