diff --git a/include/client/taos.h b/include/client/taos.h
index edb1552b81..6fa30737e7 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -172,10 +172,6 @@ DLL_EXPORT int taos_load_table_info(TAOS *taos, const char* tableNameList);
 
 DLL_EXPORT int taos_insert_lines(TAOS* taos, char* lines[], int numLines);
 
-DLL_EXPORT int taos_insert_telnet_lines(TAOS* taos, char* lines[], int numLines);
-
-DLL_EXPORT int taos_insert_json_payload(TAOS* taos, char* payload);
-
 #ifdef __cplusplus
 }
 #endif