KVM Hypervisor Cleanup
KVM Hypervisor Cleanup

- Remove a few experiemental code lines left as comments
- Rework first disks' boot=on addition, which was calculated twice
- Remove an empty line
- Remove reference to hvm_pae which doesn't apply to kvm

Reviewed-by: imsnah


grnet/snf-ganeti,andir/ganeti,onponomarev/ganeti,dimara/ganeti,mbakke/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,bitemyapp/ganeti,leshchevds/ganeti,bitemyapp/ganeti,ganeti/ganeti,onponomarev/ganeti,mbakke/ganeti,yiannist/ganeti,yiannist/ganeti,yiannist/ganeti,apyrgio/ganeti,ganeti/ganeti,mbakke/ganeti,ganeti/ganeti,apyrgio/ganeti,grnet/snf-ganeti,dimara/ganeti,andir/ganeti,andir/ganeti,apyrgio/snf-ganeti,ganeti-github-testing/ganeti-test-1