Android 11's toolchain does not support std::filesystem, but camera_hal_config.cpp currently uses it. Remove references to std::filesystem in order to support Android <= 11. This adds a very small difference in behaviour, as File::exist() will return true for special files (pipes, character or block devices, ...) while std::filesystem::is_regular_file() doesn't, but I consider this to be a corner case that doesn't matter much. Signed-off-by: Nicholas Roth <nicholas@rothemail.net> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>