search.js: fix stray await

Co-authored-by: Michael Howell <[email protected]>

Author: lolbinarycat

src/librustdoc/html/static/js/search.js

@@ -1913,7 +1913,7 @@ class DocSearch {
                 this.getPathData(entry.exactModulePath) :
                 null,
             buildParentLike("parent"),
-            await buildParentLike("traitParent"),
+            buildParentLike("traitParent"),
             entry ? this.getName(entry.krate) : "",
         ]);
         const crate = crateOrNull === null ? "" : crateOrNull;