hygiene: Require passing transparency explicitly to `apply_mark`

1 files changed, 1 insertions, 8 deletions

diff --git a/src/libsyntax/tokenstream.rs b/src/libsyntax/tokenstream.rs
index 09a1b93c7bb..0d9f3769ce9 100644
--- a/src/libsyntax/tokenstream.rs
+++ b/src/libsyntax/tokenstream.rs
@@ -19,7 +19,7 @@ use crate::parse::Directory;
 use crate::parse::token::{self, DelimToken, Token, TokenKind};
 use crate::print::pprust;
 
-use syntax_pos::{BytePos, ExpnId, Span, DUMMY_SP};
+use syntax_pos::{BytePos, Span, DUMMY_SP};
 #[cfg(target_arch = "x86_64")]
 use rustc_data_structures::static_assert_size;
 use rustc_data_structures::sync::Lrc;
@@ -547,11 +547,4 @@ impl DelimSpan {
     pub fn entire(self) -> Span {
         self.open.with_hi(self.close.hi())
     }
-
-    pub fn apply_mark(self, expn_id: ExpnId) -> Self {
-        DelimSpan {
-            open: self.open.apply_mark(expn_id),
-            close: self.close.apply_mark(expn_id),
-        }
-    }
 }