Nuke sfd-scheduler; link/fcfs-scheduler now does this work.
Nuke sfd-rate-estimator; it was a rather unnecessary wrapper for FlowStats.
Nuke cdma-rates.h; read link rates from trace file at run time.
Move printing functionality from the erstwhile SfdRateEstimator.
Replace SfdRateEstimator by FlowStats -> cleaner design.
Replace SfdRateEstimator with FlowStats in EnsembleScheduler.