remove dupicate

Signed-off-by: Đinh Hoàng Việt <134517889+M-DinhHoangViet@users.noreply.github.com>

engine.py

@@ -6,7 +6,7 @@
 
 
 class Engine:
-    def __init__(self, engine: chess.engine.SimpleEngine, ponder: bool, opponent: chess.engine.Opponent, opponent: chess.engine.Opponent) -> None:
+    def __init__(self, engine: chess.engine.SimpleEngine, ponder: bool, opponent: chess.engine.Opponent) -> None:
         self.engine = engine
         self.ponder = ponder
         self.opponent = opponent