removed dead exception check

src/main/java/com/pfefferminzia/petinsurance/tariffs/TariffConfiguration.java

@@ -55,12 +55,7 @@ public record TariffConfiguration(Map<String, BigDecimal> animalBaseSums,
             throw new IllegalArgumentException("Alter kann nicht negativ sein: " + age);
         }
 
-        var entry = ageFactors.ceilingEntry(age);
+        return ageFactors.ceilingEntry(age).getValue();
-        if (entry == null) {
-            throw new IllegalStateException("Alter überschreitet maximal zulässigen Systemwert.");
-        }
-
-        return entry.getValue();
     }
 
     public BigDecimal getBreedFactor(String breed) {