Android 4.3 originally shipped with a privacy feature that allowed users to pick and choose what data an app could collect on a device. Prior to this move, users could see what data points an app collected during an install, but couldn't choose to block certain features, which made many users have to decide to either allow access to everything, or not install the app at all. This new feature was supposed to allow for more control over the app expierence by letting users decide which data points they were willing to share. HOWEVER, now that v4.3 is actually on the market, Google is now saying that this feature was an "accident".
When asked for comment, 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. We are suspicious of this explanation, and do not think that it in any way justifies removing the feature rather than improving it.
Thinking that the conversation went something like, "Oops! Our bad, we didn't mean to give users more control while alienating ad partners."