We fully support xsaves, so no need for noxsaves temporary
option anymore.

This reverts commit ba93feb5f0f017f2ee498f6ee2db58bcaf817501.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>