价格走势

@@ -53,10 +53,6 @@ public class ProductPriceService implements ApplicationContextAware{
 
         LOG.info("priceTrendModels result is {}", priceTrendModels.size());
 
-        if (priceTrendModels.size() <= 1) {
-            return Lists.newArrayList();
-        }
-
         List<PriceTrendResp> result = Lists.newArrayList();
         priceTrendModels.stream().forEach(item ->
             result.add(new PriceTrendResp.Builder().setProductId(item.getProductId())