MODE-2323 Removed the proxy layer and delta write functionality in Schematic

ModeShape's is no longer using Infinispan in ways where these pieces of functionality are useful.
Removing them should simplify the logic to represent more of what we're actually doing. See MODE-2323 for details.
in that case i'm still not convinced we should be always doing this (which I think also explains the previous configuration of the `lockingCache` with the `FAIL_SILENTLY` flag)