Revert "Return the pk/id for docs in search" (#6602)

Author: smithellis

kitsune/search/search.py

@@ -227,7 +227,6 @@ def make_result(self, hit):
             "score": hit.meta.score,
             "title": hit.title[self.locale],
             "search_summary": summary,
-            "id": hit.meta.id,
         }