better code

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

@@ -201,8 +201,6 @@ class KnowledgeServiceImpl implements IKnowledgeService {
 
     @Override
     public IPage<KnowledgeVO> queryPageList(KnowledgeParam knowledgeParam, Integer pageNo, Integer pageSize, String column, String order) {
-
-        List<String> permitKnowList = new ArrayList<>();
         List<String> catList;
         List<String> treeList = knowledgeProjectService.getTreeListBy(knowledgeParam.getKnowledgeProjectId())
                 .stream().map(KbKnowledgeProject::getId).collect(Collectors.toList());