diff --git a/archivebox/core/mixins.py b/archivebox/core/mixins.py
deleted file mode 100644
index 6dbab974..00000000
--- a/archivebox/core/mixins.py
+++ /dev/null
@@ -1,21 +0,0 @@
-from django.contrib import messages
-
-from archivebox.search import query_search_index
-
-class SearchResultsAdminMixin:
-    def get_search_results(self, request, queryset, search_term: str):
-        """Enhances the search queryset with results from the search backend"""
-        
-        qs, use_distinct = super().get_search_results(request, queryset, search_term)
-
-        search_term = search_term.strip()
-        if not search_term:
-            return qs.distinct(), use_distinct
-        try:
-            qsearch = query_search_index(search_term)
-            qs = qs | qsearch
-        except Exception as err:
-            print(f'[!] Error while using search backend: {err.__class__.__name__} {err}')
-            messages.add_message(request, messages.WARNING, f'Error from the search backend, only showing results from default admin search fields - Error: {err}')
-        
-        return qs.distinct(), use_distinct