chore(rustdoc): remove unused members of RenderType

Commit e629381653bb3579f0cea0b256e391edef5e8dbb removes the only place
these members variables are actually read.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/librustdoc/formats/cache.rs b/src/librustdoc/formats/cache.rs
index 811f6829201..c9682bd84f7 100644
--- a/src/librustdoc/formats/cache.rs
+++ b/src/librustdoc/formats/cache.rs
@@ -128,7 +128,6 @@ crate struct Cache {
 /// This struct is used to wrap the `cache` and `tcx` in order to run `DocFolder`.
 struct CacheBuilder<'a, 'tcx> {
     cache: &'a mut Cache,
-    empty_cache: Cache,
     tcx: TyCtxt<'tcx>,
 }
 
@@ -173,7 +172,7 @@ impl Cache {
             self.primitive_locations.insert(prim, def_id);
         }
 
-        krate = CacheBuilder { tcx, cache: self, empty_cache: Cache::default() }.fold_crate(krate);
+        krate = CacheBuilder { tcx, cache: self }.fold_crate(krate);
 
         for (trait_did, dids, impl_) in self.orphan_trait_impls.drain(..) {
             if self.traits.contains_key(&trait_did) {
@@ -302,7 +301,7 @@ impl<'a, 'tcx> DocFolder for CacheBuilder<'a, 'tcx> {
                             desc,
                             parent,
                             parent_idx: None,
-                            search_type: get_index_search_type(&item, &self.empty_cache, self.tcx),
+                            search_type: get_index_search_type(&item, self.tcx),
                             aliases: item.attrs.get_doc_aliases(),
                         });
                     }