nvs: Remove flash layout arguments from nvs_init()

Add notes that current NVS layout defaults are a Work In Progress and
not yet integrated with the partition table.

examples/03_http_request/main/http_request_main.c

@@ -174,7 +174,7 @@ static void http_get_task(void *pvParameters)
 
 void app_main()
 {
-    nvs_flash_init(6, 3);
+    nvs_flash_init();
     system_init();
     initialise_wifi();
     xTaskCreate(&http_get_task, "http_get_task", 2048, NULL, 5, NULL);