better code

src/main/java/com/zzsn/knowbase/service/impl/KnowledgeServiceImpl.java

@@ -145,11 +145,6 @@ class KnowledgeServiceImpl implements IKnowledgeService {
             }
             knowledge.setContents(contentList);
             knowledgeMessage.setContents(contentList);
-        } else {
-            if (null == knowledge.getContents().get(0).getContentId()) {
-                knowledge.getContents().get(0).setContentId(codeGenerateUtil.geneIdNo(Constants.FINANCE, 8));
-            }
-            knowledgeMessage.setContents(knowledge.getContents());
         }
         //id为空表示新增
         if (null == knowledge.getId()) {