Resolve "Collections mehr hervorheben"

Related to #460 (closed)

src/main/java/at/ac/uibk/gitsearch/service/ChatMessageService.java

@@ -58,9 +58,7 @@ public class ChatMessageService {
         ChatMessage chatMessage = new ChatMessage();
 
         Review review = reviewRepository.getById(chatMessageDTO.getReviewID());
-        if (review == null) {
-            log.warn("Review not found for ID: {}", chatMessageDTO.getReviewID());
-        }
+
         chatMessage.setReview(review);
 
         chatMessage.setTimestamp(new Date());