How do I delete auto backed-up pictures in my gallery in my Samsung GT-s7275T?
Thanks to someone who replied on Android Central Forums.....
Login to google+ on your PC.
go to photos, you'll be able to see all your albums there.
Click on the arrow on the extreme right end top of the album.
Select all your photos and click on option move to bin.
you can later empty your bin.
All your photos will be deleted and you'll not see any auto backup folder on your android device.