Google tells EFF: Android 4.3's privacy tool was a MISTAKE, we've yanked it
Found on The Register on Friday, 13 December 2013

The software, dubbed App Ops, was bundled into Android 4.3 as a hidden application. For each installed program, it presents a series of switches so that users can activate some permissions, such as granting access to the cellular or Wi-Fi network, but block others, such as sharing your physical whereabouts.
"Google told us that the feature had only ever been released by accident - that it was experimental, and that it could break some of the apps policed by it," said Peter Eckersley, technology projects director at the EFF.
So either an app breaks, or you give up some of your privacy. That's an easy choice.