On the development phase of magento will will see something like “Any orders placed through this store will not be honored or fulfilled.” thats magento’s demo store notice. Here we are discussing on disabling Magento Demo Store notice
To disable it, log into your Magento admin panel and go to the
System > Configuration > Design option
in the left menu HTML Head. At the bottom of this section you will see the option Display Demo Store Notice. Set this to No and click Save Config. The demo notice will be removed and you will be able to start accepting orders.
Hope this helps for Disabling Magento Demo Store notice