With the third beta of iOS 7.1, Apple included a feature that allows users to delete OTA ( over-the-air ) installation files that are installed automatically when an iPhone is connected to AC power.
over the air update
Posted inNEWS
Apple Drops iOS 6 Beta 2
pple has released an over-the-air update to the iOS 6 Beta which was first released after the WWDC keynote on June 11.