ACRN 2.1 supports two virtual boot modes, deprivilege boot mode and
direct boot mode. The deprivilege boot mode’s main purpose is to support
booting Clear Linux Service VM with UEFI service support, but this
brings scalability problems when porting ACRN to new Intel platforms.
For the 2.2 release, deprivilege mode is removed, and only direct boot
is supported, and with this we've removed support for Clear Linux as the
service VM, which impacts over 50 ACRN documents. This PR removes
documents we don't intend to update, and fixes broken links that would
occur from references to these deleted docs.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>