How to delete synced photos off ipad

They are deleted using the same process as you synced them to it i.e. reconnect the iPad to your computer's iTunes and change your photo sync selection, if you want to delete all of the synced photos try selecting and syncing just an empty folder

Iphone

Please give me instructions, there is no where in ITunes to change my synced photos

You use the same process that you used to sync them via your computer's iTunes to the phone. The photos were synced to the phone via iTunes ?