Remove stabilized features

alexcrichton · Amanieu · commit 6f39dc2892bd · 2021-07-30T12:52:55.000+02:00
diff --git a/crates/core_arch/src/lib.rs b/crates/core_arch/src/lib.rs
@@ -5,8 +5,6 @@
 #![deny(rust_2018_idioms)]
 #![feature(
     asm,
-    const_fn_union,
-    const_fn_transmute,
     const_panic,
     custom_inner_attributes,
     link_llvm_intrinsics,
