remove unused log

src/main/java/com/kms/service/helper/PaymentHistoryCacheHelper.java

@@ -30,7 +30,6 @@ public class PaymentHistoryCacheHelper {
     }
 
     public static String formHistoryCacheKey(String initiatorId) {
-        System.out.println("CACHE KEY: " + "payment-history:"+initiatorId);
         return "payment-history:"+initiatorId;
     }