removed unnecessary lines

backend/src/main/java/pdl/backend/ImageController.java

@@ -33,7 +33,6 @@ public class ImageController {
 
     private final ImageDao imageDao;
 
-	@Autowired
     public ImageController(ImageDao imageDao) {
         this.imageDao = imageDao;
     }

backend/src/main/java/pdl/backend/ImageDao.java

@@ -10,7 +10,6 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Optional;
 
-import org.springframework.core.io.ClassPathResource;
 import org.springframework.stereotype.Repository;
 
 @Repository