remove applyTruthMatch and use only getTruth method for TauTruthMatching
This MR is going to remove the "applyTruthMatch" for truth matching and use exclusively "getTruth" method. The two methods are equivalent since currently "applyTruthMatch" is just a call of "getTruth" and it was kept in the code for historical backward compatibility, so this can workflow can be simplified.
Tagging @martindl
Edited by Antonio De Maria