This reverts commit ae44169139
as libglx has been fixed already; see #27340 and #28782 for
the details, huge thanks go to Alexey Borisenkov for his
thorough investigation and patches as well as to shrek@
and sin@ for their cooperation to get this fixed in Sisyphus.
Эта фича предназначена для конфигурирования поддержки выполнения дистрибутивов в качестве гостей в среде виртуальных машин.