Fix regression from #3672 - Do not use pipeline around zscore (#3704)

app/services/remove_status_service.rb

@@ -33,12 +33,10 @@ class RemoveStatusService < BaseService
   end
 
   def remove_from_followers
-    redis.pipelined do
     @account.followers.local.find_each do |follower|
       unpush(:home, follower, @status)
     end
   end
-  end
 
   def remove_from_mentioned(stream_entry)
     salmon_xml       = stream_entry_to_xml(stream_entry)