xen: Fix build warning

Signed-off-by: Anirban Chakraborty <abchak@juniper.net>
Merge pull request #695 from praveenkv/master

Remove few test cases to avoid compilation errors.
Merge pull request #693 from anirban-c/master

xen: Fix build warning
Merge pull request #696 from praveenkv/master

Make agent-init more consistent