diff --git a/app/models/solr_document.rb b/app/models/solr_document.rb
index c1d89a87..8b3a4b45 100644
--- a/app/models/solr_document.rb
+++ b/app/models/solr_document.rb
@@ -34,8 +34,4 @@ def fetch(key, *default)
   def to_param
     first("access_identifier_ssim") || id
   end
-
-  def tags_to_solr
-    {}
-  end
 end