openthread: move implementation-specific functions to private headers

components/openthread/include/esp_openthread_netif_glue.h

@@ -38,27 +38,6 @@ void *esp_openthread_netif_glue_init(void);
  */
 void esp_openthread_netif_glue_deinit(void);
 
-/**
- * @brief This function updates the netif fds and timeouts to the main loop.
- *
- * @param[inout]    mainloop    The main loop context.
- *
- */
-void esp_openthread_netif_glue_update(esp_openthread_mainloop_context_t *mainloop);
-
-/**
- * @brief This function performs the netif process.
- *
- * @param[in]    instance   The OpenThread instance.
- *
- * @return
- *      - ESP_OK on success
- *      - ESP_FAIL on OpenThread failure
- *      - ESP_ERR_NO_MEM on memory allocation failure
- *
- */
-esp_err_t esp_openthread_netif_glue_process(otInstance *instance, const esp_openthread_mainloop_context_t *mainloop);
-
 #ifdef __cplusplus
 }
 #endif