You need can access your template in a web authoriing tool like Dreamweaver or you can edit it directly as follows. 

From the Joomla Administrator menu, choose Site > Template Manager > Site Templates
Identify the default template, select its radio button and click the "Edit HTML" button in the upper right.
Locate the following code, select it and hit the delete key.

<?php mosPathWay(); ?><div id="pathway"></div>

Click the "Save" button in the upper right and you have now successfully removed Joomla's pathway code.