1 files changed, 2 insertions, 19 deletions
diff --git a/compiler/rustc_data_structures/src/sync/vec.rs b/compiler/rustc_data_structures/src/sync/vec.rs
index 314496ce9f0..21ec5cf6c13 100644
--- a/compiler/rustc_data_structures/src/sync/vec.rs
+++ b/compiler/rustc_data_structures/src/sync/vec.rs
@@ -4,40 +4,23 @@ use rustc_index::Idx;
 
 #[derive(Default)]
 pub struct AppendOnlyIndexVec<I: Idx, T: Copy> {
-    #[cfg(not(parallel_compiler))]
-    vec: elsa::vec::FrozenVec<T>,
-    #[cfg(parallel_compiler)]
     vec: elsa::sync::LockFreeFrozenVec<T>,
     _marker: PhantomData<fn(&I)>,
 }
 
 impl<I: Idx, T: Copy> AppendOnlyIndexVec<I, T> {
     pub fn new() -> Self {
-        Self {
-            #[cfg(not(parallel_compiler))]
-            vec: elsa::vec::FrozenVec::new(),
-            #[cfg(parallel_compiler)]
-            vec: elsa::sync::LockFreeFrozenVec::new(),
-            _marker: PhantomData,
-        }
+        Self { vec: elsa::sync::LockFreeFrozenVec::new(), _marker: PhantomData }
     }
 
     pub fn push(&self, val: T) -> I {
-        #[cfg(not(parallel_compiler))]
-        let i = self.vec.len();
-        #[cfg(not(parallel_compiler))]
-        self.vec.push(val);
-        #[cfg(parallel_compiler)]
         let i = self.vec.push(val);
         I::new(i)
     }
 
     pub fn get(&self, i: I) -> Option<T> {
         let i = i.index();
-        #[cfg(not(parallel_compiler))]
-        return self.vec.get_copy(i);
-        #[cfg(parallel_compiler)]
-        return self.vec.get(i);
+        self.vec.get(i)
     }
 }