MODE-2265 After comparing MapDB with the current ISPN cache locally, it runs out MapDB performs worse when there is a lot of churn because the serialization/deserialization process. After looking at the current default ISPN workspace cache config, it turns out there is no reason for enable locking for the WorkspaceCache, so this has been removed.
Merge pull request #1217 from hchiorean/MODE-2265

MODE-2265 Removed WS cache locking