2 files changed, 0 insertions, 13 deletions
diff --git a/compiler/rustc_span/src/edition.rs b/compiler/rustc_span/src/edition.rs
index 608b8c24bde..78ac61fa31d 100644
--- a/compiler/rustc_span/src/edition.rs
+++ b/compiler/rustc_span/src/edition.rs
@@ -1,4 +1,3 @@
-use crate::symbol::{sym, Symbol};
 use std::fmt;
 use std::str::FromStr;
 
@@ -58,15 +57,6 @@ impl Edition {
         }
     }
 
-    pub fn feature_name(self) -> Symbol {
-        match self {
-            Edition::Edition2015 => sym::rust_2015_preview,
-            Edition::Edition2018 => sym::rust_2018_preview,
-            Edition::Edition2021 => sym::rust_2021_preview,
-            Edition::Edition2024 => sym::rust_2024_preview,
-        }
-    }
-
     pub fn is_stable(self) -> bool {
         match self {
             Edition::Edition2015 => true,
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 9ad76b74c38..f3c5138716d 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -1350,13 +1350,10 @@ symbols! {
         rtm_target_feature,
         rust,
         rust_2015,
-        rust_2015_preview,
         rust_2018,
         rust_2018_preview,
         rust_2021,
-        rust_2021_preview,
         rust_2024,
-        rust_2024_preview,
         rust_begin_unwind,
         rust_cold_cc,
         rust_eh_catch_typeinfo,