Just found this easy solution to hide the left navigation panel in sharepoint

The left navigation bar makes the page looks very “SharePoint”. And, some valuable space is wasted under it. If you don’t want to customize the Master page (or want to keep the left nav panel in the rest of the site), you can just hide it on the home page. Insert a Content Editor webpart, and edit the source by clicking the “Source Editor…” button, and enter this:

.ms-navframe{ display:none; }

That’s right, this is just to override the default style for that section.