DEV: Revert server-side changes from 82cff57

DEV: Revert server-side changes from 82cff57

This was causing spec failures and needs to be investigated

diff --git a/plugin.rb b/plugin.rb
index 4ae720a..f9e10ea 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -70,9 +70,9 @@ after_initialize do
   end
 
   require_dependency 'post_serializer'
-  require_dependency 'user_card_serializer'
+  require_dependency 'user_serializer'
 
-  class ::UserCardSerializer
+  class ::UserSerializer
     attributes :date_of_birth
 
     def include_date_of_birth?

GitHub sha: d6979ab6