In sql server replication when stored procedures get replicated, it creates MSins, MSdel and MSupd procedures for all tables in the database

I have single sql instance and I have created replication of my database in same instance. Now when I have inserted data into the tables I found out that replication of insert stored procedure is getting created in the replica database. This happens for delete and update also. So now my replica database has MSins, MSupd and MSdel for all of my tables available in database. How to stop this?