CHANGE: Removal of Replica stuff on the DB side. Interface on Handler is
preservered
CHANGE: Restore the removeFile method that was erroneously removed from
the class.
Restore the method also in the client (even if not needed here)
CHANGE: We do not care AT ALL about replicas

So just list the directory, and add all files once.
Will have an error is the res is not OK
More cleanup with respect to Replicas
Merge pull request #1684 from sposs/TSCleanupFinish

[v6r10] CHANGE: Final Removal of Replica stuff on the TSDB side