b21d2216ac
Devices that launched with Android 10 or later require FBE (File Based Encryption) from the beginning, so there's no need to support converting to FBE after the fact anymore. This was only ever a developer option, so it probably wasn't used much. And in any case, it's not used anymore, as isConvertibleToFBE() is hard-coded to return false. Besides the fact that FBE has been required for several releases now, this functionality was only ever available on devices that use FDE (Full Disk Encryption), but FDE support has been removed from Android. Therefore, remove this unused code. Bug: 208476087 Change-Id: Ia765d6827e6144153c4e2a253b146ef2c75ca6fe