Removing DiskDepth as a server parameter. No longer used.
Removing MinDiscardBlockConsideration as a server parameter. This s calculated from device info.
Removing NumDiskWorkerThreads. This config is no longer used.
Removing unused WalkerLocalCacheSize parameter.
Removing unused WalkerLocalCacheSize field.
Removing unused weak / strong repo pool parameters
Merge pull request #61 from jmlvanre/config-cleanup

Config cleanup