refactor: remove redundant initializer

Author: barcellos-pedro

src/main/java/com/itau/transferencia/exceptions/BusinessException.java

@@ -3,7 +3,7 @@
 import org.springframework.http.HttpStatus;
 
 public class BusinessException extends RuntimeException {
-    private HttpStatus httpStatus = HttpStatus.INTERNAL_SERVER_ERROR;
+    private HttpStatus httpStatus;
 
     public BusinessException(String message, HttpStatus httpStatus) {
         super(message);