Merge pull request 'refactor: remove useless field' (!162) from idk into main

Reviewed-on: #162
Reviewed-by: Jan K9f <jan@kjan.email>

backend/src/main/java/de/szut/casino/slots/SlotService.java

@@ -67,7 +67,6 @@ public class SlotService {
         SpinResult spinResult = new SpinResult();
         spinResult.setStatus(status);
         spinResult.setAmount(resultAmount);
-        spinResult.setWin(isWin);
 
         return spinResult;
     }

backend/src/main/java/de/szut/casino/slots/SpinResult.java

@@ -11,14 +11,7 @@ import java.util.List;
 @Setter
 @NoArgsConstructor
 public class SpinResult {
-    public SpinResult(String status, BigDecimal amount, boolean isWin) {
-        this.status = status;
-        this.amount = amount;
-        this.isWin = isWin;
-    }
-
     private String status;
     private BigDecimal amount;
-    private boolean isWin;
     private List<List<Symbol>> resultMatrix;
 }