Remove unnecessary code

2/solution.nix

@@ -28,7 +28,7 @@ let
     if b == 0 then mkLoss a
     else if b == 1 then mkDraw a
     else mkWin a;
-  makeBestMoves = m: map (pair: split pair (a: b: [a (bestMove a b)] )) m;
+  makeBestMoves = map (pair: split pair (a: b: [a (bestMove a b)] ));
 in {
   part1 = totalScore matches;
   part2 = totalScore (makeBestMoves matches);