[ios/tvout] - remove the none working try to move back to internal display when we...

[ios/tvout] - remove the none working try to move back to internal display when we are on tvout and someone pulls the tvout adapter from the device. This was never really working, it resulted in wrong framebuffersize when tv/amp was switched off and on (fireing connect/disconnect messages) on retina devices and isn't a real important use case (cable unpluggers can restart XBMC without an issue)