Remove legacy code related to older way of counting the number of treatment failures

[rjzupkoii]

In older iterations of the simulation the treatment failure concept could refer to a therapy failing (i.e., ) or an individual failing to seek treatment. In the latest version of the simulation the concepts are clearly separated, but some legacy code remains in the simulation that is being called. This should be removed to eliminate a nominal amount of CPU and memory overhead associated with the bookkeeping and calculations.

The deprecated function ModelDataCollector::record_1_TF is a good starting place to trace the code to be removed.