ios: fixes for C++11 compilation

Change-Id: I1d333c623f204a41dc92ebd03cbd67958e4588a7
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Android: Remove unnecessary member

Change-Id: I68f6f7f4a14d7d36ef18d2db354704309fbb0bf4
Reviewed-by: Daniel Teske <daniel.teske@digia.com>