Cleanup deprecated trimming and extension of the viable points and projections

evalModel knows via persistent data (EvalModelOptions instance), which trimmed input arguments assign as values to which parameters, and which values to take for the remaining parameters. Similarly, getViableProjections has the knowledge of still projectable parameters. There is no need anymore to trim and extend the viable points and found projections.

Required changes in more details are described in a comment in getViableProjections.m.