Remove the match_class from tournament.

The way the results are calculated in a tournament is not consistent
with the calculations being done in the match. This would involve a bit
more work.

Author: drvinceknight

axelrod/tournament.py

@@ -34,7 +34,6 @@ def __init__(
         edges: List[Tuple] = None,
         match_attributes: dict = None,
         seed: int = None,
-        match_class = Match,
     ) -> None:
         """
         Parameters
@@ -79,7 +78,6 @@ def __init__(
             turns = DEFAULT_TURNS
 
         self.turns = turns
-        self.match_class = match_class
         self.prob_end = prob_end
         self.match_generator = MatchGenerator(
             players=players,
@@ -453,7 +451,7 @@ def _play_matches(self, chunk, build_results=True):
         player2 = self.players[p2_index].clone()
         match_params["players"] = (player1, player2)
         match_params["seed"] = seed
-        match = self.match_class(**match_params)
+        match = Match(**match_params)
         for _ in range(repetitions):
             match.play()