There is a link near the top menu navigation in admin panel of magento and in some cases let say you want to give this to some one else you want to remove it from appearing and if you dont, more h that client who ordered you this website may think that you haven’t done any thing more than jsut installing magento that it is really not.
you should go too to the root magento installed directory
then open up menu.phtml that is located in the following order:
just remove the following block of code
Thats it you are done