core: remove auto suspend of VM.

Auto suspend is a feature which is no longer being used, therefore should
be deleted.

Signed-off-by: Maor Lipchuk <mlipchuk@redhat.com>
Change-Id: I7d9eb342e4ab04c87bc30545cc0831b11c21337a
core: Remove auto suspend audit log.

1. Remove audit log of auto suspend
2. Removing hibernateVM parameter class after auto suspend has been
removed.

Signed-off-by: Maor Lipchuk <mlipchuk@redhat.com>
Change-Id: I7d9eb34264ab64c54bc12225cc0820b30c40667a