This will remove the panel from the display canvas of the Dashboard but will leave the panel in the Panel List for later use.

1. Click the Panel Layout menu from the Dashboard Menu.
   
   
   
2. Find the panel you want to remove, check the panel and hit the Remove From Tab button.
   
   
   
3. Select Yes on the confirmation message.
   
   
   
4. Click Save then Close toolbar button to cascade the changes.