In order to remove you app from SALE, you would have to log into Itunes Connect and then do the following
1. Go to “Manage Your Applications” and select the app that you want to remove from SALE.
2. Click on the “Rights and Pricing” Button. This is the first button out of the 4 buttons on the top right side of the page in blue color.<!>
3. Below the Availability date and Price tier section, click on the Specific Store Link on the bottom of the page before the Save button. It will show a list of all the countries where this app is currently being sold. Now click on “Deselect All” button to uncheck all the countries.
4. Click “Save Changes” at the bottom and go back to the app page and see the App has been removed from SALE from all the countries. Also it will show a red circle next to it with the App status "Developer Removed From Sale".
Finally after some time you can go into the Itunes and try to search for the app or go directly to Itunes URL for the app and see that the app is no longer available for SALE.