rustdoc: remove useless `Symbol::is_empty` checks.

There are a number of `is_empty` checks that can never fail. This commit
removes them.

1 files changed, 1 insertions, 11 deletions

diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs
index e973b89b237..4fd669ab6d1 100644
--- a/src/librustdoc/clean/inline.rs
+++ b/src/librustdoc/clean/inline.rs
@@ -211,17 +211,7 @@ pub(crate) fn load_attrs<'hir>(cx: &DocContext<'hir>, did: DefId) -> &'hir [hir:
 }
 
 pub(crate) fn item_relative_path(tcx: TyCtxt<'_>, def_id: DefId) -> Vec<Symbol> {
-    tcx.def_path(def_id)
-        .data
-        .into_iter()
-        .filter_map(|elem| {
-            // extern blocks (and a few others things) have an empty name.
-            match elem.data.get_opt_name() {
-                Some(s) if !s.is_empty() => Some(s),
-                _ => None,
-            }
-        })
-        .collect()
+    tcx.def_path(def_id).data.into_iter().filter_map(|elem| elem.data.get_opt_name()).collect()
 }
 
 /// Record an external fully qualified name in the external_paths cache.