Cannot remove server events with long data server and database names

[CR #189593] When you try to remove a server event where the DS.DB_name (data server and database name) is longer than 30 characters, the Replication Server plug-in returns this error message:

Tried to access an unknown Latency Event -
'DataServer_and.DataBase_name_more_than_30_char.RS

Workaround: Make sure the DS.DB_name does not exceed 30 characters.