fix imports

Author: Ronny Bräunlich

src/main/java/de/codecentric/spring/additionalvalidation/controller/ValidationController.java

@@ -14,7 +14,6 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.context.annotation.RequestScope;
 
 import java.util.stream.Collectors;
 

src/main/java/de/codecentric/spring/additionalvalidation/validator/StringValueValidator.java

@@ -1,15 +1,10 @@
 package de.codecentric.spring.additionalvalidation.validator;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-
 import de.codecentric.spring.additionalvalidation.controller.Data;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import org.springframework.validation.Errors;
 
-import javax.servlet.http.HttpServletRequest;
-
 @Component
 public class StringValueValidator {