修复指派列表名称显示问题，新增员工时角色不存在的提示问题

dq-financial-hrms/src/main/java/com/daqing/financial/hrms/controller/EmployeeController.java

@@ -69,8 +69,7 @@ public class EmployeeController implements EmployeeControllerApi {
     @PostMapping("/tree")
     public ResponseResult tree(@RequestBody List<Long> ids) {
         List<RolePermissionResponse> result = employeeService.permissionTreeList(ids);
-        return result == null ? new ResponseResult(CommonCode.PERMISSION_IS_NOT) :
-                new ResponseResult<List<RolePermissionResponse>>().SUCCESS(result);
+        return ResponseResult.SUCCESS(result);
     }
 
     /**