Function esp_idf_sys::esp_mqtt_client_unregister_event

pub unsafe extern "C" fn esp_mqtt_client_unregister_event(
    client: esp_mqtt_client_handle_t,
    event: esp_mqtt_event_id_t,
    event_handler: esp_event_handler_t
) -> esp_err_t

@brief Unregisters mqtt event

@param client mqtt client handle @param event event ID @param event_handler handler to unregister

@return ESP_ERR_NO_MEM if failed to allocate ESP_ERR_INVALID_ARG on invalid event ID ESP_OK on success