Use the drop function string class command to drop a function-string class that you created, from the replication system, if you are sure that you will not need the function-string class again.
You can drop any function-string class except the three system-provided classes and any user-created class that currently serves as a parent class. Before you can drop a function-string class, you must drop all database connections that use the function-string class, or you can alter the connections to use a different class.
Dropping a function-string class deletes all function strings defined for the class and removes all references to the class from the RSSD.
drop function string class tokyo_func_class
Enter this command in the Replication Server that is the primary site for the class.
See Replication Server Reference Manual > Replication Server Commands > drop function string class.