made the model checkstyle compliant

Projekte/mdga/model/src/main/java/pp/mdga/message/server/IncorrectRequestMessage.java

@@ -34,6 +34,7 @@ public IncorrectRequestMessage() {
     public void accept(ServerInterpreter interpreter) {
         interpreter.received(this);
     }
+
     /**
      * This method will be used to return necessary class information in a more readable format.
      *

Projekte/mdga/model/src/main/java/pp/mdga/notification/InfoNotification.java

@@ -1,6 +1,5 @@
 package pp.mdga.notification;
 
-import pp.mdga.game.BonusCard;
 /**
  * Notification that is to give information to the player.
  */