removed unused import

src/main/java/eu/mhsl/minenet/minigames/instance/game/stateless/types/tetris/game/TetrisGame.java

@@ -11,7 +11,6 @@ import net.minestom.server.timer.TaskSchedule;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Random;
 
 public class TetrisGame {
     private final StatelessGame instance;