Unimpl TypeSuperVisitable for UnevaluatedConst

UnevaluatedConst is not a type of any interest to folders or visitors,
and therefore should not be "super visitable" at all.

Author: eggyal

compiler/rustc_middle/src/ty/structural_impls.rs

@@ -658,12 +658,3 @@ impl<'tcx> TypeSuperVisitable<TyCtxt<'tcx>> for ty::Const<'tcx> {
         self.kind().visit_with(visitor)
     }
 }
-
-impl<'tcx> TypeSuperVisitable<TyCtxt<'tcx>> for ty::UnevaluatedConst<'tcx> {
-    fn super_visit_with<V: TypeVisitor<TyCtxt<'tcx>>>(
-        &self,
-        visitor: &mut V,
-    ) -> ControlFlow<V::BreakTy> {
-        self.substs.visit_with(visitor)
-    }
-}